Modesto Luceño Garcés

Modesto Luceño Garcés
Universidad Pablo de Olavide | UPO · Department of Molecular Biology and Biochemistry Engineering

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234
Publications
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2,470
Citations
Citations since 2017
43 Research Items
1237 Citations
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250

Publications

Publications (234)
Article
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This article shows some contributions to the knowledge of the genus Carex (Cyperaceae) in the Iberian Peninsula. Among them we highlight the confirmation of C. pseudobrizoides Clavaud for the Iberian Peninsula (Basque Country). The results of the morphological study carried out to differentiate this species from the closely related C. brizoides L.,...
Preprint
Despite centuries of intense work, the basic taxonomic knowledge of the flora of the Iberian peninsula is still incomplete, especially for highly diverse and/or difficult genera such as Carex . In this study, we conducted an integrative systematic study based on molecular, morphological and cytogenetic data to elucidate the taxonomic status of seve...
Article
Full-text available
Carex camposii Boiss. & Reut., endemic to high mountain ranges in Southern Iberian Peninsula (Sierra Nevada, Sierra de los Filabres and Sierra de Baza), is a morphologically and molecularly well-defined species included in Carex gr. laevigata (subg. Carex, sect. Spirostachyae). We have discovered a population of a morphologically similar species to...
Article
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• Background and Aims: While variation in genome size and chromosome numbers and their consequences are often investigated in plants, the biological relevance of variation in chromosome size remains poorly known. Here, we examine genome and mean chromosome size in the cyperid clade (families Cyperaceae, Juncaceae, Thurniaceae), which is the largest...
Article
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In this paper we report the presence of Carex olbiensis (Cyperaceae) in the CW Iberian Peninsula (Sierra de Gredos, Extremadura region), which represents an important disjunction in relation to the known range of the species and its westernmost new limit. We revised the distribution of this species, which resulted in the likely exclusion of the spe...
Article
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Carex subgenus Psyllophorae is an engaging study group due to its early diversification compared to most Carex lineages, and its remarkable disjunct distribution in four continents corresponding to three independent sections: sect. Psyllophorae in Western Palearctic, sect. Schoenoxiphium in Afrotropical region, and sect. Junciformes in South Americ...
Article
Full-text available
Carex section Schoenoxiphium (Cariceae, Cyperaceae) is endemic to the Afrotropical biogeographic region and is mainly distributed in southern and eastern Africa, with its center of diversity in eastern South Africa. The taxon was formerly recognized as a distinct genus and has a long history of taxonomic controversy. It has also an important morpho...
Article
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Cyperaceae (sedges) are the third largest monocot family and are of considerable economic and ecological importance. Sedges represent an ideal model family to study evolutionary biology because of their species richness, global distribution, large discrepancies in lineage diversity, broad range of ecological preferences, and adaptations including m...
Book
Full-text available
La presente guía pretende ser una herramienta de disfrute y conocimiento de la flora silvestre de la sierra de Villafranca (Ávila). Se incluye una selección de las especies de plantas vasculares más significativas de la flora de dichas montañas, tanto por su abundancia como por su interés florístico y/o etnobotánico. Se inculyen cerca de 200 fotogr...
Article
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Carex section Phacocystis (Cyperaceae) is one of the most diverse and taxonomically complex groups of sedges (between 116‐147 spp.) with a worldwide distribution in a wide array of biomes. It has a very complicated taxonomic history, with numerous disagreements among different treatments. We studied the biogeography and niche evolution in a phyloge...
Article
Changes in chromosome number as a result of fission and fusion in holocentric chromosomes have direct and immediate effects on genome structure and recombination rates. These in turn may influence ecology and evolutionary trajectories profoundly. Sedges of the genus Carex (Cyperaceae) comprise ca. 2000 species with holocentric chromosomes that evol...
Article
Restriction‐site associated DNA sequencing (RAD‐seq) and related methods have become relatively common approaches to resolving species‐level phylogeny. It is not clear, however, whether RAD‐seq data matrices are well suited to relaxed‐clock inference of divergence times, given the size of the matrices and the abundance of missing data. We investiga...
Article
Full-text available
Phylogenetic studies of Carex L. (Cyperaceae) have consistently demonstrated that most subgenera and sections are para‐ or polyphyletic. Yet taxonomists continue to use subgenera and sections in Carex classification. Why? The Global Carex Group here takes the position that the historical and continued use of subgenera and sections serves to (1) org...
Article
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The species shows a restricted extent of occurrence (EOO) and area of occupancy (AOO) of 8 km2. Nevertheless, no declines or fluctuations in either EOO or AOO, number of mature individuals or localities nor habitat quality have been reported. Thus, we cannot consider this species to be Endangered (EN) under criterion B. For these reasons, the speci...
Article
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In the present paper, 43 chorological novelties for Gredos range (Central System, Spain) are showed. These citations are the result of the works leaning to the elaboration of the sierra de Gredos vascular flora catalogue. Some of them pose relevant disjunctions regarding their known Iberian distribution, as the cases of Myosotis hervei Sennen, Cype...
Article
The field of systematics is experiencing a new molecular revolution driven by the increased availability of high-throughput sequencing technologies. As these techniques become more affordable, the increased genomic resources have increasingly far-reaching implications for our understanding of the Tree of Life. With c. 2000 species, Carex (Cyperacea...
Article
Carex acocksii is a sedge species known only from two populations in the Karoo of the Northern Cape in South Africa. It was described from a single locality (Hantam Mts., Calvinia) more than twenty years ago, and tentatively ascribed to section Petraea because of its unispicate inflorescence and utricles with membranaceous-papyraceous walls. Howeve...
Article
One of the most common processes shaping evolution in plants could be the introgression or hybridization between species. We sampled a putative hybrid population of Carex × boenninghausiana recently discovered from Sicily (Italy), and one specimen of each of the parent species of this hybrid (C. paniculata and C. remota) from the same area. We perf...
Book
Full-text available
La presente guía recoge una selección de las plantas vasculares del municipio de El Oso (La Moraña, Ávila), que cuenta con interesantes especies adaptadas a los suelos salinos.
Article
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In the present paper, 58 chorological novelties for Gredos range (Central System, Spain) are showed. Some of them represent important disjunctions with respect to known Iberian distribution, as the cases of Cytinus ruber (Fourr.) Fritsh, Isolepis fluitans (L.) R.Br., Alyssum montanum L. and Lysimachia ephemerum L. Some species, such as Carex lainzi...
Article
Full-text available
The megadiverse genus Carex (c. 2000 species, Cyperaceae) has a nearly cosmopolitan distribution, displaying an inverted latitudinal richness gradient with higher species diversity in cold‐temperate areas of the Northern Hemisphere. Despite great expansion in our knowledge of the phylogenetic history of the genus and many molecular studies focusing...
Article
Full-text available
Una especie nueva de Linaria sect. Supinae en la Sierra de Gredos (Sistema Central, Península Ibérica)Linaria vettonica Luceño, Mazuecos & P. Vargas, a new species of Linaria sect. Supinae, is described. It is a narrow endemic inhabiting the southern hills of the western and central massifs of Sierra de Gredos (Sistema Central mountains, Iberian Pe...
Chapter
Holocentric chromosomes are characterised by the presence of kinetochoric activity along the chromosome length. This atypical chromosomal architecture has evolved independently in a wide array of lineages across the tree of life. Different mechanisms have been developed to overcome meiotic problems posed by holocentry, such as inverted meiosis and...
Article
Large-scale changes in chromosome number have been associated with diversification rate shifts in many lineages of plants. For instance, several ancient rounds of polyploidization events have been inferred to promote genomic differentiation and/or isolation and, consequently, angiosperm diversification. Dysploidy, although less studied, has been su...
Article
Full-text available
Here we report chromosome number counts from the sedge family (Cyperaceae), most of which correspond to genus Carex from the Nearctic and western Palearctic. In addition, counts are reported for some Neotropical and Afrotropical sedges. We provide the first known chromosome counts for the subfamily Mapanioideae, 5 genera (Lagenocarpus, Afroscirpoi...
Poster
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Carex in South America Representative diversity. 201 taxa (about 10% of the whole genus), belonging to the four major clades and 33 sections. At least 2 introduced spp. (+ other 3 spp.?). Multiple origins. Carex has colonized South America several independent times and via different colonization routes. Ecology. Neotropical Carex grow in cold--...
Article
Full-text available
Despite most of the cytogenetic research is focused on monocentric chromosomes, chromosomes with kinetochoric activity localized in a single centromere, several studies have been centered on holocentric chromosomes which have diffuse kinetochoric activity along the chromosomes. The eukaryotic organisms that present this type of chromosomes have bee...
Article
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Specimens of Andreaea sect. Andreaea collected in Lesotho show morphological differences from the remaining Sub-Saharan Africa species in the group. Particularly, Lesotho specimens have much larger spores, a character diagnostic in the genus. Spore size also separates the Lesotho specimens from typical A. rupestris from the Northern Hemisphere. Con...
Article
Aim: To disentangle the importance of the Beringian land bridges during the Pliocene and Quaternary periods in order to explain the current distribution of circumpolar plants with potential for long-distance dispersal. Location: Circumpolar (Arctic and Antarctic). Methods: We sampled all extant species in Carex section Glareosae (26 species and 2 s...
Article
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Novelties of the Sierra de Gredos bryoflora (Central System, Spain), with special remarks on the autonomous community of Extremadura This study present new records of bryophytes based on the collections made along the years 2016 and 2017 in both oro and cryoromediterranean bioclimatic subzones of Gredos mountain range, which were scarcely collected...
Article
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Bipolar disjunct distributions are a fascinating biogeographic pattern exhibited by about 30 vascular plants, whose populations reach very high latitudes in the northern and southern hemispheres. In this review, we first propose a new framework for the definition of bipolar disjunctions and then reformulate a list of guiding principles to consider...
Article
Gene flow among incipient species can act as a creative or destructive force in the speciation process, generating variation on which natural selection can act while, potentially, undermining population divergence. The flowering plant genus Carex exhibits a rapid and relatively recent radiation with many species limits still unclear. This is the ca...
Article
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Despite the significant increase of bryological studies in Spain during the last decades, some regions remain poorly studied. This is the case of Sierra de Gredos mountain range, in the Iberian Central System, which we visited in several collecting expeditions, with focus in the insufficiently explored high mountain areas. As a result, we highlight...
Article
Premise of the study: The sedge Carex macloviana d'Urv presents a bipolar distribution. To clarify the origin of its distribution, we consider the four main hypotheses: long-distance dispersal (either by mountain hopping or by direct dispersal), vicariance, parallel evolution, and human introduction. Methods: Phylogenetic, phylogeographic, and d...
Article
Full-text available
Carex sect. Schoenoxiphium (18 spp.) is a monophyletic group that has its centre of diversity in eastern south Africa. We describe two new species from the Republic of South Africa and Lesotho on the basis of morphological characters. Both new species (C. badilloi and C. parvirufa) are closely related to C. ludwigii, C. kukkoneniana and C. pseudoru...
Article
About 30 plant species occur at high latitudes in both hemispheres, thus achieving a so-called bipolar distribution. Six of these species belong to Carex, of which just one, Carex canescens, occurs on two different landmasses in the Southern Hemisphere (South America and Oceania). The goals of this study are (1) to test the various hypotheses accou...
Article
Premise of research. The Schoenoxiphium clade (Carex, Cyperaceae) exhibits a high species diversity in South Africa and a complex taxonomy. Previous phylogenetic studies did not resolve the species relationships within the Schoenoxiphium clade due to the lack of informative characters in DNA markers used. Our aim is to resolve the species relations...
Article
Full-text available
Despite the proximity of Gredos Mountains (Central System range) to important cities such as Madrid or Salamanca, the bryophyte flore of theese mountains remains little known. In this paper we present the results of a high number of collecting trips along the last four years in different sectors of this mountain range, mainly in their scarcely samp...
Article
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Despite previous efforts to unify the terminology for Cyperaceae, two different terms, perigynium and utricle, are in common use for the prophyllar bract enclosing the female flower of Carex. Use of these terms is divided largely on geographic lines (mainly North American versus European and other authors, respectively). The recent merging of Kobre...
Article
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Major public DNA databases — NCBI GenBank, the DNA DataBank of Japan (DDBJ), and the European Molecular Biology Laboratory (EMBL) — are invaluable biodiversity libraries. Systematists and other biodiversity scientists commonly mine these databases for sequence data to use in phylogenetic studies, but such studies generally use only the taxonomic id...
Article
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We present the first large-scale phylogenetic hypothesis for the genus Carex based on 996 of the 1983 accepted species (50.23%). We used a supermatrix approach using three DNA regions: ETS, ITS and matK. Every concatenated sequence was derived from a single specimen. The topology of our phylogenetic reconstruction largely agreed with previous studi...
Poster
Full-text available
More than 15 years after the start, the Euro+Med PlantBase project (E+M), which aimed at providing a comprehensive, dynamic and permanently updated online checklist of all vascular plants for Europe and the Mediterranean countries, is now very close to full coverage. E+M is the most detailed resource on plant biodiversity in the Euro-Mediterranean...
Book
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This field guide shows the main natural values of the Iberian Central range (Gredos, Guadarrama, Ayllón, Gata and Estrela mountain ranges). More than 1600 species of plants, animals and fungi are described, and more than 2500 photographies, figures and maps are included.
Article
Full-text available
Carex (Cyperaceae), with an estimated 2000 species, nearly cosmopolitan distribution and broad range of habitats, is one of the largest angiosperm genera and the largest in the temperate zone. In this article, we provide argument and evidence for a broader circumscription of Carex to add all species currently classified in Cymophyllus (monotypic),...
Article
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PREMISE OF THE STUDY: The circumboreal Carex section Glareosae comprises 20–25 currently accepted species. High variability in geographic distribution, ecology, cytogenetics, and morphology has led to historical problems both in species delimitation and in circumscribing the limits of the section, which is one of the major tasks facing caricologist...
Article
AimWe set out to explain the bipolar distribution of Carex maritima, clarifying the direction and timing of dispersal. We also tested mountain-hopping and direct long-distance dispersal hypotheses, as well as the relationship of C. maritima with biotic and abiotic factors that could explain the bipolar distribution.LocationArctic/boreal latitudes o...
Article
AimThe bipolar disjunction, a biogeographical pattern defined by taxa with a distribution at very high latitudes in both hemispheres (> 55° N; > 52° S), is only known to occur in about 30 vascular plant species. Our aim was to use the bipolar species Carex arctogena to test the four classic hypotheses proposed to explain this exceptional disjunctio...
Article
Full-text available
Premise of the study: In organisms with holocentric chromosomes like Carex species, chromosome number evolution has been hypothesized to be a result of fission, fusion and/or translocation events. Negative, positive or the absence of correlations have been found between chromosome number and genome size in Carex. Methods: Using the inferred diploi...
Article
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The morphology of the Eurasian Carex acuta L. has remained poorly characterized, which has allowed its traditional usage as a taxonomic hotchpotch, in which other similar taxa have been included. In this study, we clarify the taxonomic status of C. acuta and assess the delimitation of two similar species found in the southern part of the C. acuta r...
Article
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Presentamos a continuación algunas novedades corológicas interesantes que incluyen algunas especies raras o amenazadas, sobre las que se hacen comentarios relativos a su conservación, y que contribuyen al mejor conocimiento de la familia ciperáceas en la Península Ibérica. Entre ellas destaca el hallazgo en la Sierra de Gredos de la cuarta població...
Article
Full-text available
Carex flava is a species complex with frequent hybridization. Within its Old World distribution, the group reaches the Iberian Peninsula, North Africa and Macaronesia, where the taxonomy of the group is particularly controversial. We performed a biometric study using quantitative characters and statistical multivariate and univariate techniques to...
Article
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This article reviews the types of numerical variation in chromosomes, with special emphasis on those organisms which have holocentric chromosomes. Terminological aspects are discussed with reference to monocentric as well as holocentric chromosomes. The term symploidy (partial or total) is proposed to include ploidy levels generated by fusion of so...
Article
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Chromosome evolution has been demonstrated to have profound effects on diversification rates and speciation in angiosperms. While polyploidy has predated some major radiations in plants, it has also been related to decreased diversification rates. There has been comparatively little attention to the evolutionary role of gains and losses of single c...
Chapter
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Monocotyledons constitute one of the main angiosperm lineages. This natural group is well-defined by several morphological (one cotyledon, atactostelic vascular system, lack of typical secondary growth, etc) and molecular characters (obtained from numerous plastid and, to a lesser extent, nuclear and mitochondrial markers). Recent phylogenies based...
Article
Full-text available
Carex rainbowii (Cariceae, Cyperaceae), a new species from the Drakensberg mountains (KwaZulu-Natal province), is described and illustrated. It was found in the shady understory of the Afromontane forest in the Cathedral Peak area. An additional, nearby population was also identified based on previously collected herbarium material. Morphological a...
Article
The holocentric structure promotes chromosome rearrangements by fission, fusion, translocation, and inversion, which have been thought to promote differentiation and speciation. The Carex laevigata group (Cyperaceae) comprises four species: two restricted endemics from the western Mediterranean (Carex camposii, 2n = 72, and Carex paulo-vargasii, 2n...
Article
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As part of taxonomical studies of Carex l. by the authors, a study of herbarium specimens (BEo, BUNS, SoM) was conducted, which uncovered interesting fl oristic records for three Carex species for Southeastern Europe. Carex atherodes is reported for the fi rst time for the fl ora of central Europe (Vojvodina, Serbia) and the Balkan peninsula (Bosni...
Article
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Species of Rhynchospora sect. Tenues are morphologically very similar. Rhynchospora tenuis complex is the most problematic species complex in this group and it concentrates entities of difficult delimitation, as is the case of R. tenuis, R. tenuis subsp. austro-brasiliensis and R. enmanuelis. Samples of these three taxonomic entities, besides R. ju...
Article
Aim Based on extensive range-wide sampling, we address the phylogeographical history of one of the most widespread and taxonomically complex sedges in Europe, Carex nigra s. lat. We compare the genetic structure of the recently colonized northern areas (front edge) and the long-standing southern areas (rear edge), and assess the potential genetic b...
Article
Full-text available
Carex sect. Ceratocystis is distributed in Eurasia and North America, with a few disjunct taxa in the Southern Hemisphere. Despite being one of the most intensively studied groups within Carex, its taxonomy remains a complex issue due to hybridization and faint morphological boundaries. Two main contrasting approaches to its taxonomy may be disting...
Book
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Avances principales en el árbol de la vida: a continuación se resumen los avances más significativos desde un punto de vista evolutivo para cada capítulo del árbol de la vida. Entre “comillas” los grupos que han resultado no ser monofiléticos. • Capítulo 1. El componente evolutivo de la sistemática lo aporta la filogenia. • Capítulo 2. Se reconocen...
Article
• Changes in chromosome number as a result of fission and fusion in holocentrics have direct and immediate effects on the recombination rate. We investigate the support for the classic hypothesis that environmental stability selects for increased recombination rates. • We employed a phylogenetic and cytogenetic data set from one of the most diverse...
Article
Full-text available
Great distribution disjunctions of taxa have captivated naturalists since the beginning of the XXth century. Only thirty species are known to have a bipolar distribution, being Carex the genus with the largest number of bipolar species. A rising discipline, phylogeography, could be used to test for hypotheses in bipolar species since it tries to un...
Article
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The Italian Peninsula was one of the main glacial refugia for european biota during the Pleistocene glaciations. However, plant phylogeography in italy has received comparatively less attention than in the iberian and Balkan peninsulas, probably due to its lower plant species richness and endemicity rates. However, the italian Peninsula is also kno...
Article
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Escudero, M. & Luceño, M. 2011. Taxonomic revision of the tropical African group of Carex subsect. Elatae (sect. Spirostachyae, Cyperaceae). Anales Jard. Bot. Madrid 68(2): 225-247. The tropical African monophyletic group of Carex subsect. Elatae (sect. Spirostachyae) is distributed in continental tropical Africa, Madagascar, the Mascarene archipel...