X. -J. Fu

Zhejiang Academy of Agricultural Sciences, Zhegang, Jiangxi Sheng, China

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Publications (2)5.85 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: The cytoplasmic male sterility (CMS) line FuCMS5A and its restorer line FuHui9 were crossed to produce a segregating F(2) population for pollen fertility assay and the genetic mapping of restorer-of-fertility (Rf) gene. Results showed that the individual F(2) plants were fertile or semi-fertile based on their pollen fertility characteristics. The average ratios of viable pollen were 96.90% and 50.00% for each class of individuals. The segregation of F(2) plants showed a good fit to a 1:1 ratio, which reflects a typical heredity pattern of gametophytic CMS with fertility restorer being controlled by a single dominant gene. Using bulk segregation analysis (BSA) and genetic mapping, the Rf gene was mapped on molecular linkage group J (chromosome 16), between the simple sequence repeat (SSR) makers BARCSOYSSR-16-1064 and BARCSOYSSR-16-1082 with the distances of 0.59 and 0.83 cM, respectively. Four SSR markers (BARCSOYSSR-16-1070, Sctt011, BARCSOYSSR-16-1076 and BARCSOYSSR-16-1077) were cosegregating with this Rf gene in the mapping population. These makers will greatly facilitate the maker assisted selection procedures in CMS breeding programs and it lays a foundation for further map-base cloning of the Rf gene.
    Plant Science 06/2012; 188-189:36-40. DOI:10.1016/j.plantsci.2012.02.007 · 4.11 Impact Factor
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    ABSTRACT: Strawberry (Fragaria ananassa Duch.) seedlings were pretreated with hexanoic acid 2-(diethylamino)ethyl ester (DA-6) in concentrations of 0, 10, 20 and 40 mg dm−3 and then subjected to chilling and rewarming. The effects of applied DA-6 on the generation of reactive oxygen species (O2 −, H2O2), lipid peroxidation, proline accumulation and photosynthesis were evaluated. Pretreatment with DA-6 alleviated the inhibition of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activities caused by chilling stress thus reducing O2 − and H2O2 production and lipid peroxidation in pretreated plants. DA-6 pretreatment also accelerated accumulation of proline and reduce the decrease in proline content after rewarming. DA-6 pretreatment increases maximum quantum yield of photosystem 2 (Fv/Fm), actual photochemical efficiency of photosystem 2 (ΦPS2), photochemical quenching coefficient (qP) and net photosynthetic rate (PN) and decreases non-photochemical quenching coefficient (qNP) of the seedlings under chilling stress. DA-6 pretreatment also increased the recovery rate of photosynthesis after rewarming. Additional key wordsascorbate peroxidase–catalase–chlorophyll fluorescence– Fragaria ananassa –net photosynthetic rate–superoxide dismutase.
    Biologia Plantarum 12/2011; 55(4):793-796. DOI:10.1007/s10535-011-0190-8 · 1.74 Impact Factor

Publication Stats

4 Citations
5.85 Total Impact Points

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Institutions

  • 2012
    • Zhejiang Academy of Agricultural Sciences
      Zhegang, Jiangxi Sheng, China
  • 2011
    • China Agricultural University
      Peping, Beijing, China