Your browser doesn't support javascript.
loading
Phylogenetic systematics of Vigna sensu stricto in the context of Physostigma and allies.
Horton, Dasha M; Feleke, Yonas; Pasquet, Remy S; Javadi, Firouzeh; Melville, Kaycie A; Delgado-Salinas, Alfonso; Thulin, Mats; Mithen, Richard F; Gepts, Paul; Egan, Ashley N.
Afiliación
  • Horton DM; Department of Biology, Utah Valley University, Orem, 84058, UT, USA.
  • Feleke Y; Department of Plant Sciences, Section of Crop and Ecosystem Sciences, University of California, Davis, CA, USA.
  • Pasquet RS; DIADE, IRD, Univ Montpellier, Montpellier, France.
  • Javadi F; Institute of Decision Science for a Sustainable Society, Kyushu University, Fukuoka, Japan.
  • Melville KA; Kyushu University Museum, Kyushu University, Fukuoka, Japan.
  • Delgado-Salinas A; Department of Biology, Utah Valley University, Orem, 84058, UT, USA.
  • Thulin M; Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado postal 70-233, CDMX, 04510, México.
  • Mithen RF; Systematic Biology, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18D, Uppsala, SE-75236, Sweden.
  • Gepts P; Liggins Institute, University of Auckland, New Zealand.
  • Egan AN; Department of Plant Sciences, Section of Crop and Ecosystem Sciences, University of California, Davis, CA, USA.
Am J Bot ; 111(9): e16381, 2024 Sep.
Article en En | MEDLINE | ID: mdl-39107933
ABSTRACT
PREMISE Vigna includes economically vital crops and wild species. Molecular systematic studies of Vigna species resulted in generic segregates of many New World (NW) species. However, limited Old World (OW) sampling left questions regarding inter- and intraspecific relationships in Vigna s.s.

METHODS:

African species, including the putative sister genus Physostigma, were comprehensively sampled within the context of NW relatives. Maximum likelihood and Bayesian inference analyses of the chloroplast matK-trnK and nuclear ribosomal ITS/5.8 S (ITS) DNA regions were undertaken to resolve OW Vigna taxonomic questions. Divergence dates were estimated using BEAST to date key nodes in the phylogeny.

RESULTS:

Analyses of matK and ITS data supported five clades of Vigna s.s. subg. Lasiospron, a reduced subg. Vigna, subg. Haydonia, subg. Ceratotropis, an enlarged subg. Plectrotropis, and a clade including V. kirkii and V. stenophylla. Genome size estimates of 601 Mb for V. kirkii are near the overall mean of the genus, whereas V. stenophylla had a larger genome (810 Mb), similar to some Vigna subg. Ceratotropis or Plectrotropis species.

CONCLUSIONS:

Former subg. Vigna is reduced to yellow- and blue-flowered species and subg. Plectrotropis is enlarged to mostly all white-, pink-, and purple-flowered species. The age of the split between NW and OW Vigna lineages is ~6-7 Myr. Genome size estimates cannot rule out a polyploid or hybrid origin for V. stenophylla, potentially involving extinct lineage ancestors of Vigna subg. Ceratotropis or Plectrotropis, as indicated by network and phylogenetic analyses. Taxonomic revisions are suggested based on these results.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Vigna Idioma: En Revista: Am J Bot Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Vigna Idioma: En Revista: Am J Bot Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos