Diversity and Evolutionary Relationship Among Four Cultivated and Two Wild Species of Vigna

Abstract

Cultivated Vigna species; mung bean (V. radiata (L.) J-Vilczek) , urad
bean (V. mungo (L.) Hepper) and t!teir wild occurring putative progenitors;
V. radiata val'. ,sublobata Verde. and V. mungo L. val'. silvestris Lukoki,
Marec!tal and Otoul respectively were studied along with rice bean (V.
umbellata (Thunb.) Ohwi and Ohashi) and V. trilobata Ait. The data from
experimental biology demonstrated discrete variation among variable
populations of different Vigna species. Four distinct groups emerged
showing that all the four cultivated species are distinct and' !tave diverse
and independent origin, while val'. silvestris showed continuous variation
with urad bean suggesting close affinity and direct lineage from abore
putative progenitor