Euphytica (EUPHYTICA )

Publisher: Springer Verlag

Description

Euphytica is an international journal on theoretical and applied aspects of plant breeding. It publishes critical reviews papers and short communications on the results of original research related to plant breeding. The integration of modern and traditional plant breeding is a growing field of research using transgenic crop plants and/or marker assisted breeding in combination with traditional breeding tools. The content should cover the interests of researchers directly or indirectly involved in plant breeding at auniversities breeding institutes seed industries plant biotech companies and industries using plant raw materials and promote stability adaptability and sustainability in agriculture and agro-industries.

  • Impact factor
    1.64
    Show impact factor history
     
    Impact factor
  • 5-year impact
    1.88
  • Cited half-life
    0.00
  • Immediacy index
    0.15
  • Eigenfactor
    0.01
  • Article influence
    0.50
  • Website
    Euphytica website
  • Other titles
    Euphytica
  • ISSN
    0014-2336
  • OCLC
    1568375
  • Material type
    Periodical, Internet resource
  • Document type
    Journal / Magazine / Newspaper, Internet Resource

Publisher details

Springer Verlag

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Authors own final version only can be archived
    • Publisher's version/PDF cannot be used
    • On author's website or institutional repository
    • On funders designated website/repository after 12 months at the funders request or as a result of legal obligation
    • Published source must be acknowledged
    • Must link to publisher version
    • Set phrase to accompany link to published version (The original publication is available at www.springerlink.com)
    • Articles in some journals can be made Open Access on payment of additional charge
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: IntroductionIn Europe, the challenge of meeting future food demands while ensuring the sustainability of agricultural systems is increasingly an issue on the public agenda. We have to accept the need of increased efficiency, sustainability and resilience of our agricultural production, while at the same time meeting the emerging challenges such as “feeding the world,” “food or fuel,” “biodiversity,” and “climate change.” EUCARPIA, the European association for research in plant breeding, organized a Section meeting on Organic & Low-input Agriculture in Germany from September 24–26, 2013 at the Georg August University of Göttingen on Breeding for Nutrient Efficiency. This conference focused on the development of new crop breeding strategies to improve nutrient use efficiency as one strategy to address the above mentioned challenges. Next to various contributions on basic concepts and methodologies to improve nutrient efficiency, updates on many ongoing breeding programs and research acti
    Euphytica 08/2014;
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    ABSTRACT: Stripe rust resistance gene YrC591, present in wheat cultivar C591, is effective against currently important Puccinia striiformis Westend. f. sp. tritici isolates in China. An F2:3 population (127 lines) was developed by crossing C591 with susceptible cultivar Taichung 29. Thirty four simple sequence repeat (SSR) and 155 sequence tagged site (STS) markers located on chromosome 7BL were used to perform bulk segregant analysis. Eight SSR markers, cfa2040, wmc273, wmc166, gwm984, barc32 wmc276, barc182 and gwm146, and 6 STS markers, mag1714, mag1757, mag1811, BE425120, BE471173 and BG607810, were polymorphic between the parents and contrasting resistant and susceptible DNA pools. F2:3 lines were genotyped with these polymorphic markers. Linkage analysis indicated that YrC591 was flanked by Xmag1714 and Xbarc182 with genetic distances of 1.2 and 0.4 cM, respectively. In addition, validation of the SSR markers cfa2040, wmc273 and barc32, and STS markers mag1714 and BE425120 was carried out using wheat lines with C591 as a parent, indicating that these markers should be effective in tracing this gene in marker-assisted selection.
    Euphytica 08/2014; 198(3).
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    ABSTRACT: EST–SSRs of Gossypium barbadense are mainly developed using traditional Sanger sequencing. However, due to the high cost and low throughput of Sanger sequencing, it is necessary to use high throughput sequencing technology for the development of more ESTs to more effectively analyze the structure and function of this species. In this study, a G. barbadense acc. 3–79 unnormalized fiber cDNA library (219.63 Mb) and a G. barbadense cv. Hai7124 normalized root cDNA library (204.61 Mb) were obtained by 454 sequencing. EST–SSRs were identified from the two libraries, and only 7,255 SSRs were obtained from the unnormalized library, with an average frequency of 1/31.00 kb. In contrast, 16,087 SSRs were obtained from the normalized library, with an average frequency of 1/13.02 kb. The frequencies of dinucleotides and tetranucleotides in the two libraries were very different. Comparing the two libraries, we found that a normalized cDNA library is more efficient for mining SSRs. Integrating the two libraries allowed the development of 1,129 EST–SSR markers, and 311 polymorphic loci were integrated into our interspecific BC1 genetic linkage map. The mapping results showed that the distribution of EST–SSRs on sub-genomes and chromosomes was uneven; however, the distribution of the mapped G. barbadense EST–SSRs on homologous chromosomes was similar, with the exception of Chr05 versus Chr19 and Chr12 versus Chr26. This study provided new EST–SSR markers that will facilitate studies on cotton genetics and breeding.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Bacterial canker of kiwifruit, caused by a virulent strain of Pseudomonas syringae pv. actinidiae (Psa), has resulted in serious damage to kiwifruit industry worldwide. The variability and inheritance of resistance to Psa and fruit characters in a disconnected factorial mating population of diploid Actinidia chinensis Planch were investigated. Significant variation in all characters was found, and this appeared to be under polygenic control. Results indicated the extent and nature of genetic variation in Psa resistance available in our breeding gene pool. Estimates of narrow-sense heritability were moderate-high to high for Psa resistance, fruit weight, dry matter content (DM) and soluble solids contents (SSC), but low for fruit number per vine. The moderate-high heritability for Psa resistance indicated a genetic control of the observed variation, and selection for Psa resistance could be possible. Psa resistance had a high negative genetic correlation with fruit number per vine, but a moderate positive correlation with fruit weight, DM and SSC. The results implied that yield penalty of Psa resistance might exist in kiwifruit. Thus, selection strategies based on Psa resistance need to take account of its negative correlation with fruit number per vine. Male and female parents useful for improving Psa resistance and fruit characters simultaneously were identified. Two full-sib families were outstanding, as they combined high degrees of resistance to Psa with high yield components and reasonable amounts of DM and SSC.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Stay-green maize genotypes have been associated with tolerance to biotic and abiotic stresses, including tolerance to drought, and to stalk and root lodging, but there is limited information on its inheritance. Thus, this research was conducted to study the inheritance of the stay-green trait using both conventional analysis and QTL mapping of the Design III in a tropical maize population developed from two inbred lines genetically divergent for this trait. Two-hundred and fifty F2 plants were genotyped with 177 microsatellite markers, and their backcrossed progenies to both parental inbreds were evaluated at three locations. Ten plants per plot were assessed 120 days after sowing and the plot means scores for stay-green, adjusted for days to silking emergence, were used for analysis. The additive variance was larger than the dominance variance, the genetic by location interaction variance presented a high magnitude, and the heritability coefficient on a plant-basis a low magnitude. Seventeen QTL were mapped, most of them were clustered on four chromosomes and accounted for by 73.08 % of the genetic variance. About half of the QTL interacted with location, and the average level of dominance was partial dominance. The additive effects were larger than the dominance effects; the latter were not unidirectional, so that heterosis could not be exploited in crosses. Procedures for marker-assisted selection to increase the level of stay-green are discussed and an approach is suggested for using both stable and non-stable QTL in a marker-assisted backcross program.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Premature senescence is an important limited factor for the short season cotton (SSC), which decreases yield and declines fiber quality. The activity of antioxidant enzyme, methane dicarboxylic aldehyde (MDA) content and chlorophyll content is related with premature senescence. The present study is aimed to investigate the heredity and relationship of the antioxidant enzymes catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD), MDA content and chlorophyll content for breeding high yield and good quality of the SSC varieties. Six parents from two types of senescence varieties (type A, which matures early and displays premature senescence; type B, which matures early but does not display premature senescence) and their F1, F2 progenies in a diallel crossing scheme were planted in the experiment field. Phenotypic data on the traits were analyzed according to the Additive–Dominance–Epistasis and Additive–Dominance–Maternal–Paternal effects genetic model. CAT activity of dominant genetic effects were significant and large from 9 to 85 days after planting, the variance components were 34.69, 8.41, 31.93, 19.57 and 27.96 % at 9, 36, 50, 66 and 85 days, respectively. Additive-by-additive epistatic effects on CAT activity were significant and important from 9 to 85 days after planting. POD activity of additive genetic effects was significant and stable. There was not interaction by environment during 24 to 50 days after planting, the variance components were 9.82, 18.86 and 7.87 % at 24, 36 and 50 days, respectively. SOD activity of additive genetic effects was significant and stable. There was not interaction by environment during 66 to 100 days after planting, the variance components were 11.56, 11.80 and 13.84 % at 66, 85 and 100 days, respectively. MDA content of additive genetic effects was significant and stable. There was not interaction by environment during 50 to 100 days after planting, the variance components were 24.81, 13.81, 14.38 and 4.77 % at 50, 66, 85 and 100 days, respectively. Chlorophyll content was mainly controlled by significant dominance effects and main genetic effect from 9 to 66 days after planting, the dominant variance components were over 30 %. Maternal and paternal genetic effects on CAT and chlorophyll content were significant among 36–85 days after planting. Based on these results, it is suggested to selection of POD, SOD and MDA should be undertaken at early generation (F2, F3) and selection of chlorophyll and CAT should be undertaken at late generation (F4, F5) in SSC breeding programs.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: In almond, the presence of double seeded nuts significantly reduces their commercial value. For this reason, in breeding programs of this species, seedlings producing double seeds are usually eliminated. In order to avoid this trait in the offspring and increase the efficiency of the breeding programs it is important to know its genetic control. In this work, heritability of double seeds was estimated by midparent–offspring regression (narrow sense, h2) and by variance components analysis (broad sense, H2) for 3 years, in a population with a combination of full-sib and half-sib offspring coming from eight crosses designed for this objective. Heritability was high by both methods every year, and the values calculated by variance components were higher than those estimated by regression. The average ratio h2/H2 0.69 implies some influence of a non-additive effect for this trait, such as dominance and environmental effect. In this case, the influence of the temperatures preceding blooming on the percentage of double seeds can be inferred from our results, with lower temperatures increasing the percentage of double seeds. In the crosses between parents with high percentage of double seeds a normal (Gaussian) phenotypic distribution was observed. For crosses between one parent without double seeds and parents with high-medium percentage of double seeds a right-skew distribution (L-shaped) was observed, and certain transgressive segregation was observed in the descendants. This transgressive segregation was confirmed when both parents presented null percentage of double seeds. The results confirmed the complex architecture of this trait transmitted quantitatively, where additive, non-additive and genotype-by-environment interaction effects play an important role.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: In roses the problems associated with inter-specific breeding include low percent of seed set and lack or low percent of seed germination. Low seed set is usually due to non-amenable parents, which may have different ploidy level or other divergences that result in embryo abortion at early stages of development. Lack of seed germination is mostly attributed to the mechanical restrictions such as thick pericarp or the regulatory mechanisms such as the hormonal control of dormancy. The aims of the present investigation were to optimize in vitro embryo germination technique in rose and study the ploidy of progenies resulted from interploidy hybridizations. To optimize embryo germination, seeds were surface sterilized, whole pericarp and testa were removed and embryos were placed on half strength Murashige and Skoog media supplemented with different concentrations (0, 1, 2.5, 5 mg l−1) of benzyladenine (BA) in combination with different concentrations (0, 0.5, 1, 1.5 mg l−1) of gibberellic acid. The maximum percent of in vitro embryo germination (93.40 %) was observed on medium containing 2.5 mg l−1 BA. In order to select the most fertile seed parents which could be used in interspecific hybridization, 11 commercial rose cultivars (R. × hybrida) were employed in 36 reciprocal crosses. Three rose cultivars including ‘Golden Celebration’, ‘Tess of the d’Urbervilles’ and ‘Molineux’ were selected as the maternal parents. The selected seed parents were employed in crosses with one rose species from Gallicanae section [R. damascena (2n = 4x)] and four rose species form Caninae section [R. orientalis (2n = 5x), R. iberica (2n = 5x) R. canina (2n = 5x) and R. pulverulenta (2n = 6x)]. The highest percent of hip set and in vitro embryo germination were observed in crosses between tetraploid rose cultivars and R. damascena. In all of the crosses with R. canina, the percent of hip and seed set was 0 %. However, in the crosses between tetraploid rose cultivars and other pentaploid or hexaploid rose species from Caninae section both triploid and tetraploid offsprings were attained. Future morphological analysis of the progenies is necessary to show to what extent progenies demonstrate the characteristics of the pollen parents from the Caninae section. Nevertheless, progenies from interploidy hybridizations would be beneficial in future breeding programs in order to expand the relatively small gene pool of roses.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Fertility restoration of CMS-based hybrids is an integral part of breeding hybrids and the development of new hybrid parents with desirable agronomic and market preferred traits on regular intervals is essential for sustainability of such programs. This paper reports identification of 25 male-sterility maintainers and 179 fertility restorers of A4 cytoplasm in pigeonpea (Cajanus cajan (L.) Millsp.). Multi-location evaluation of hybrids exhibited high stability for fertility restoration across diverse environments. The diversity study showed a large variation for important traits both at phenotypic as well as genetic levels. The potential use of this information in hybrid pigeonpea breeding has been discussed.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: Cotton fiber quality was quantitative trait, controlled by multiple genes. Identification of stable quantitative trait loci (QTL) effectively contributing to favorable fiber quality traits would provide the key basis for marker-assisted selection used in molecular breeding projects. Three upland cotton F2 populations were established with a common parent Chinese cultivar Yumian 1 and three American commercial cultivars/lines (Acala Maxxa, CA3084 and TAM94L-25), each of which had unique fiber quality characteristic that was favorable economically. Three whole genome genetic maps were constructed with 323, 302 and 262 SSR loci for population (Yumian 1 × Acala Maxxa), (Yumian 1 × CA3084), and (Yumian 1 × TAM 94L-25) respectively, spanning 1,617.2, 1,639.9 and 1,441.4 cM. Based on these genetic maps and three generation phenotypic data of fiber quality traits (F2, F2:3 and F2:4), 77 QTL were detected, including 19 for fiber length, 14 for fiber uniformity, 17 for micronaire, 10 for fiber elongation, and 17 for fiber strength. Among these QTL, 46 QTL were significant QTL and 31 were putative QTL, including that one QTL (qFL05.1) and four QTL (qFL23.1, qFM06.1, qFM06.2 and qFE25.1) were detected across three and two populations respectively; two QTL qFL10.1 (Yumian 1 × TAM 94L-25) and qFL15.1 (Yumian 1 × Acala Maxxa) were detected in three generations; qFM23.1, qFE18.1 and qFS21.2 detected in population (Yumian 1 × CA3084), qFE10.1, and qFS10.2 detected in population (Yumian 1 × TAM 94L-25), and qFS15.1 detected in population (Yumian 1 × Acala Maxxa), were all detected in two generations. Alleles underlying these stable QTL were valuable candidate gene for fine mapping, cloning, and favorable gene pyramiding projects. Our study also verified that QTL mapping of fiber quality traits using multiple populations with a common parent had higher efficiency compared to single population crossed with two parents and favorable alleles contributed to QTL effect could be conferred by parents with inferior fiber quality traits.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: Increasing sugar content in silage maize stalk improves its forage quality and palatability. The genetic mapping and characterization of quantitative trait loci (QTLs) is considered a valuable tool for trait enhancement, yet little information on QTL for stalk sugar content in maize has been reported. To this end, we investigated QTLs associated with stalk sugar traits including Brix, plant height (PHT), three ear leaves area (TELA), and days to silking (DTS) in two environments using a population of 202 recombinant inbred lines from a cross between YXD053, which has a high stalk sugar content, and Y6-1, which has a low stalk sugar content. A genetic map with 180 SSR and 10 AFLP markers was constructed, which spanned 1,648.6 cM of the maize genome with an average marker distance of 8.68 cM, and QTLs were detected using composite interval mapping. Seven QTLs controlling Brix were mapped on chromosomes 1, 2, 6 and 9 in the combined environments. These QTLs could explain 2.69–13.08 % of the phenotypic variance. One major QTL for Brix on chromosome 2 located between the markers bnlg1909 and umc1635 explained 13.08 % of the phenotypic variance. Y6-1 also contributed QTL allele for increased Brix on chromosome 6. One major QTLs controlling PHT on chromosome 1 and TELA on chromosome 4 were also identified and accounted for 13.68 and 12.49 % of the phenotypic variance, respectively. QTL alleles for increased DTS were located on chromosomes 1 and 5 of YXD053. Significant epistatic effects were identified in four traits, but no significant QTL × environment interactions were observed. The information presented here may be valuable for stalk sugar content improvement via marker-assisted selection in silage maize breeding programs.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: Potassium (K) deficiency is a major factor limiting crop development and yield. In this study, 20 traits were investigated at the seedling stage using a doubled-haploid population subjected to normal K and K deprivation treatments. Evaluation of phenotypes expressed under the two K supply conditions revealed that K deprivation was able to decrease values of ten measured traits, whereas values of the other ten traits increased. A total of 65 QTLs were detected across all 21 chromosomes, except for chromosomes 2B, 5A, and 7B. Individual QTLs in the two K supply treatments explained between 5.35 and 39.64 % of the phenotypic variation. Nine QTL clusters (C1–C9) involving 34 QTLs under the different K supply treatments were mapped to chromosomes 1A, 1B, 1D, 3B, 4A, 5B, 6A, and 7B. Our results are helpful for understanding the genetic basis of K deficiency in wheat, and provide useful information for genetic improvement of K deficiency in wheat by marker-assisted selection.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Aphids such as the bird cherry-oat aphid (Rhopalosiphum padi L.) are serious pests in agriculture worldwide. Partially resistant barley genotypes have been produced in a breeding program for resistance to R. padi. The resistance is manifested as smaller aphids after a certain period of nymphal growth on the test plants. A large number of doubled haploid breeding lines thereby characterized as partially resistant or susceptible to R. padi are available from this breeding program. In the present study a selection of these lines, spanning four generations and 23 genotypes, was used for the evaluation of the constitutive transcript abundance of gene sequences in young barley plants. The genes were selected from an earlier microarray study where they had been identified as being up-regulated by aphids in all four barley genotypes studied or differentially up-regulated or constitutively expressed in the two resistant as compared to the two susceptible barley genotypes. The prediction for constitutive transcript abundance across the selection of genotypes was here confirmed for five out of eight investigated genes. Two of these were, as predicted, expressed at equal levels in all genotypes. Two gene sequences exhibited higher transcript abundance in resistant than in susceptible offspring; one coding for a thionin and another for a proteinase inhibitor. A lipoxygenase gene had higher transcript abundance in the susceptible lines. The study thus gives further support for putative constitutive roles of three genes previously identified as significant in the barley–R. padi interaction.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Grain yield potential in cereals results from the contributions of three main components: inflorescence number per plant, grain number per inflorescence and mean grain weight. In rice, the Dense and erect panicle (DEP1) gene affects three important quantitative traits of the inflorescence and DEP1 homologs have been reported in barley and wheat. In this work, we have performed a detailed characterization of the barley DEP1 (HvDEP1) gene. We obtained a full-length sequence of its transcript, examined its expression in various tissues, genetically mapped it to chromosome 5H and measured its nucleotide diversity in a collection of barley cultivars from Canada. This gene has an exceptionally long 5′ UTR (297 bp) that contains an upstream open reading frame (uORF) coding for a predicted peptide of 70 amino acids. A similarly long 5′ UTR containing a putative uORF was found in all six grass species that we examined. Although HvDEP1 transcripts could be detected in all tissues tested, it was highest in meristematic tissues. In a collection of 167 barley cultivars, a low level of polymorphism was observed (π = 0.001) and the 37 SNPs/indels detected, none of which result in changes in the amino acid sequence of the HvDEP1 protein, defined 8 haplotypes. Diversity was especially low among 83 six-row types, all but one of which carried the exact same haplotype. We suggest that HvDEP1 is involved in the control of cellular growth and differentiation, that the conserved uORF may play a role in its post-transcriptional regulation and that this gene has undergone a very different history of selection within the two-row and six-row Canadian elite germplasm.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: Members of the APETALA2/ethylene response factor (AP2/ERF) transcription factor superfamily are widely present in plants and play important roles in the plant cell cycle, growth and development, as well as the response to biotic and abiotic stresses. The maize genome project has been completed; therefore, it is possible to identify all of the AP2/ERF genes in the maize genome. In this study, 184 AP2/ERF genes were identified by an in silico cloning method, and were compared with AP2/ERF genes from Arabidopsis, rice, grape and poplar. The 184 AP2/ERF maize genes were classified into four subfamilies: DREB (51), ERF (107), AP2 (22) and RAV (3), as well as one soloist. The amino acid sequence composition, physical and chemical characteristics, phylogenetic trees, conserved domain sequences, functional domains, and chromosomal location of the genes were predicted and analyzed. The 184 AP2/ERF genes are distributed on maize chromosomes 1–10 (31, 21, 13, 19, 22, 18, 21, 16, 11 and 12 genes, respectively). Under 0, 1, 2, 4 h waterlogging stress, the expression of 184 AP2/ERF genes in root of Hz32 inbred line (tolerance to waterlogging) were performed using RNA-sequence, and the result showed that 38 genes were responsive to waterlogging stress. This study lays the foundation for subsequent cloning and investigation of the function of the AP2/ERF genes responding to waterlogging stress in maize.
    Euphytica 07/2014; 198(1).
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    ABSTRACT: Wheat streak mosaic virus (WSMV) is an important pathogen in wheat that causes significant yield losses each year. WSMV is typically controlled using cultural practices such as the removal of volunteer wheat. Genetic resistance is limited. Until recently, no varieties have been available with major resistance genes to WSMV. Two resistance genes have been derived from Thinopyrum intermedium through chromosome engineering, while a third gene was transferred from bread wheat through classical breeding. New sources of resistance are needed and synthetic wheat lines provide a means of accessing genetic variability in wheat progenitors. A collection of wheat synthetic lines was screened for WSMV resistance. Four lines, 07-SYN-27, -106, -164, and -383 had significant levels of resistance. Resistance was effective at 18 °C and virus accumulation was similar to the resistant control, WGGRC50 containing Wsm1. At 25 °C, resistance was no longer effective and virus accumulation was similar to the susceptible control, Tomahawk.
    Euphytica 07/2014; 198(2).
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    ABSTRACT: Single or double flower type is one of the most important breeding targets in carnation (Dianthus caryophyllus L.). We mapped the D 85 locus, which controls flower type, to LG 85P_15–2 using a simple sequence repeat (SSR)-based genetic linkage map constructed using 91 F2 progeny derived from a cross between line 85–11 (double flower) and ‘Pretty Favvare’ (single flower). A positional comparison using SSR markers as anchor loci revealed that the map positions of the D 85 locus corresponded to the single locus controlling the single flower type derived from wild D. capitatus ssp. andrzejowskianus. We identified four co-segregating SSR markers on the D 85 locus. Verification of the SSR markers in commercial cultivars revealed that two of the four SSR markers (CES0212 and CES1982) were tightly linked to the D 85 locus, and amplified a 176-bp and 269-bp allele, respectively, which were common and unique to double flower cultivars. The map positions of the D 85 locus and the tightly linked SSR markers will be useful for determining the genetic basis of flower type and for marker-assisted breeding of carnations.
    Euphytica 07/2014; 198(2).

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