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Molecular Evidence for an Andean Origin and a Secondary Gene Pool for the Lima Bean (Phaseolus lunatus L.) using chloroplast DNA

Bourlaye FOFANA unknown (1998 only) laureate


°1967 Ivory Coast
Master in genetics, Université d'Abidjan, Ivory Coast, 1992

Molecular Evidence for an Andean Origin and a Secondary Gene Pool for the Lima Bean (Phaseolus lunatus L.) using chloroplast DNA

The publication treats the molecular phylogenesis of Lima beans (Phaseolus) for the benefit of breeding programmes of the field bean, which is an important legume crop all over the world. Chloroplast DNA was used for phylogenetic studies of the Lima bean. 22 species, comprising four of the five cultivated species, represented by 86 accessions, were included in the study. An Andean origin of the Lima bean is suggested. On the basis of these data, an overview of the evolution of the genus Phaseolus (field bean) is discussed.
Genetic improvement of plant species to increase resistance against adverse environmental conditions will always be a challenge for crop scientists. For efficient plant breeding either by traditional crossing techniques or through genetic manipulation, a profound insight and understanding in the phylogenesis of the species is a conditio sine qua non. The study is important, because field beans are the 'meat' from which resource-poor farmers world-wide obtain their required daily proteins.