Showing papers on "Phaseoleae published in 2013"
TL;DR: This study presents a taxonomic account of the Papilionoideae (Leguminosae) from remnants of Atlantic Forest in the Brazilian state of Rio Grande do Norte, finding Herbaceous and shrubby species have predominated with 60% of the total species diversity.
Abstract: This study presents a taxonomic account of the Papilionoideae (Leguminosae) from remnants of Atlantic Forest in the Brazilian state of Rio Grande do Norte. We recorded 68 species and 32 genera within the following tribes: Phaseoleae (11 genera/24 species), Dalbergieae (9/20), Swartzieae (3/3), Millettieae (2/4), Sophoreae (2/2), Abreae (1/1), Crotalarieae (1/3), Desmodieae (1/7), Indigofereae (1/3), and Sesbanieae (1/1). Ten genera and 32 species are newly recorded for the flora of Rio Grande do Norte. The most species-rich genera were Desmodium (7 species), Centrosema (5), Stylosanthes (5), Aeschynomene (4), and Macroptilium (4). Herbaceous and shrubby species have predominated with 60% (41 spp.) of the total species diversity, following by the vines and lianas with 28% (19 spp.) and the trees with only 12% (8 spp.). Identification key, descriptions, diagnostic morphological characters, geographic distribution, and illustrations are also provided.
15 citations
01 Mar 2013
TL;DR: Three new species of Mucuna from South America are described and illustrated, all of which present a morphological characteristic restricted to some neotropical species of this genus: a condensed primary inflorescence axis, with all the flowers closely inserted at the inflorescence apex.
Abstract: Summary. Three new species of Mucuna from South America are described and illustrated. All present a morphological characteristic that is restricted to some neotropical species of this genus: a condensed primary inflorescence axis, with all the flowers closely inserted at the inflorescence apex. M. argentea occurs in Colombia, Ecuador and Peru, M. klitgaardiae in Ecuador and Peru, whilst M. cajamarca is endemic to Peru. These three new species highlight the diversity and high endemism of Mucuna in South America.
7 citations
Journal Article•
TL;DR: Based on a comprehensive sample of 26 seed beetle species, the phylogenetic relationships of three of these species are investigated using molecular phylogenetics and the resulting phylogeny allows us to identify their likely sister-groups and to assess the usefulness of several taxonomically significant morphological characters in a phylogenetic context.
Abstract: A small group of East African morphologically similar species is reviewed, four of which are assigned to a new species group. Three species are described as new: Bruchidius arcuatus, B. pardellus, and B. snizeki . The leguminous host plants of three species are identified: the larva of Bruchidius ituriensis develops in the seeds of Indigofera tinctoria L., Ind. swaziensis bolus (tribe Indigofereae) and in an unidentified species of Teramnus (tribe Phaseoleae), while B. pardellus and B. mulunguensis were reared from Neonotonia wightii (WiGht & Arn.) seeds (tribe Phaseoleae). The biology of other species remains unknown. Based on a comprehensive sample of 26 seed beetle species, the phylogenetic relationships of three of these species are investigated using molecular phylogenetics. The resulting phylogeny allows us to identify their likely sister-groups and to assess the usefulness of several taxonomically significant morphological characters in a phylogenetic context.
7 citations
TL;DR: A new species of Mucuna endemic to Mexico is described and illustrated, similar to M. holtonii, but the wing petals are shorter than the standard in M. Holtonii.
Abstract: Mucuna jarocha , a new species of Mucuna endemic to Mexico, is here described and illustrated. It is similar to M. holtonii , but the wing petals are shorter than the standard in M. holtonii and longer than the standard in this new species.
5 citations
TL;DR: Pairwise FST among populations demonstrated that V. exilis was much more differentiated than V. grandiflora and showed lower average values in number of alleles, allelic richness, observed heterozygosity, gene diversity, and outcrossing rate.
Abstract: The objective of this research was to determine the genetic diversity and population structure of natural populations of two rare wild species of Asian Vigna (Phaseoleae, Fabaceae), Vigna exilis Tateishi & Maxted and Vigna grandiflora (Prain) Tateishi & Maxted, from Thailand. Employing 21 simple sequence repeat markers, 107 and 85 individuals from seven and five natural populations of V. exilis and V. grandiflora, respectively, were analyzed. In total, the markers detected 196 alleles for V. exilis and 219 alleles for V. grandiflora. Vigna exilis populations showed lower average values in number of alleles, allelic richness, observed heterozygosity, gene diversity, and outcrossing rate than V. grandiflora populations, namely 58.00% versus 114.60%, 51.96% versus 74.80%, 0.02% versus 0.18%, 0.40% versus 0.66%, and 3.24% versus 17.41%, respectively. Pairwise FST among populations demonstrated that V. exilis was much more differentiated than V. grandiflora. Analysis of molecular variance revealed that 41.83% ...
5 citations
4 citations
01 Jan 2013
TL;DR: The findings suggest that different strategies are required for in situ conservation of the two species, and that all V. exilis populations, or as many as possible, should be conserved to protect genetic resources of this species.
Abstract: The objective of this research was to determine the genetic diversity and population structure of natural populations of two rare wild species of Asian Vigna (Phaseoleae, Fabaceae), Vigna exilis Tateishi & Maxted and Vigna grandiflora (Prain) Tateishi & Maxted, from Thailand. Employing 21 simple sequence repeat markers, 107 and 85 individuals from seven and five natural populations of V. exilis and V. grandiflora, respectively, were analyzed. In total, the markers detected 196 alleles for V. exilis and 219 alleles for V. grandiflora. Vigna exilis populations showed lower average values in number of alleles, allelic richness, observed heterozygosity, gene diversity, and outcrossing rate than V. grandiflora populations, namely 58.00% versus 114.60%, 51.96% versus 74.80%, 0.02% versus 0.18%, 0.40% versus 0.66%, and 3.24% versus 17.41%, respectively. Pairwise FST among populations demon- strated that V. exilis was much more differentiated than V. grandiflora. Analysis of molecular variance revealed that 41.83% and 15.06% of total variation resided among the populations of V. exilis and V. grandiflora, respectively. Seven and two genetic clusters were detected for V. grandiflora and V. exilis by STRUCTURE analysis. Our findings suggest that different strategies are required for in situ conservation of the two species. All V. exilis populations, or as many as possible, should be conserved to protect genetic resources of this species, while a few V. grandiflora populations can capture the majority of its genetic variation.