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Genus Vigna and Cowpea (V. unguiculata [L.] Walp.) taxonomy: current status and prospects

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Title Genus Vigna and Cowpea (V. unguiculata [L.] Walp.) taxonomy: current status and prospects
 
Creator Pasquet, Rémy
 
Contributor Padulosi, Stefano
 
Subject genetic
 
Description Since the mid-nineties, thanks to DNA sequence studies, phylogeny of Phaseoleae,
Phaseolinae, and genus Vigna has been greatly improved. Genus Vigna is now reduced
to a monophyletic group including five reorganized subgenera: American subgenus
Lasiospron, a subgenus Vigna reduced to yellow and blue-flowered species which includes
Bambara groundnut, subgenus Haydonia, Asian subgenus Ceratotropis, and a subgenus
Plectrotropis enlarged to all pink-flowered species. At the infraspecific level, although a
precise phylogeny is not yet established, the different wild and domesticated cowpea
groups are now well known. The nine subspecies can be split between a “mensensis”
forest group (remote secondary gene pool) and a “dekindtiana” savanna group (close
secondary gene pool) which includes subsp. unguiculata. Subsp. unguiculata represents
the primary gene pool and includes the domesticated cowpea, var. unguiculata, and its wild
progenitor, var. spontanea (previously known as subsp. dekindtiana sensu Verdcourt non
Harms). However, if cowpea domestication occurred before 1500 BC in Harlan’s African
non-center, a precise center of domestication is yet to be identified.
 
Date 2013-11-30
2017-01-05T19:39:33Z
2017-01-05T19:39:33Z
 
Type Conference Paper
 
Identifier https://cgspace.cgiar.org/handle/10568/42350
https://mel.cgiar.org/reporting/download/hash/3JrUTiMh
Rémy Pasquet, Stefano Padulosi. (30/11/2013). Genus Vigna and Cowpea (V. unguiculata [L. ] Walp. ) taxonomy: current status and prospects. Dakar, Senegal.
https://hdl.handle.net/20.500.11766/5163
Open access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher International Institute of Tropical Agriculture (IITA)