Novel Genetic Resources in the Genus Vigna Unveiled from Gene Bank Accessions |
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| Authors: | Yu Takahashi Prakit Somta Chiaki Muto Kohtaro Iseki Ken Naito Muthaiyan Pandiyan Senthil Natesan Norihiko Tomooka |
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| Affiliation: | 1. Genetic Resources Center, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan;2. Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, Thailand;3. Tamil Nadu Agricultural University, Tamil Nadu, India;National University of Ireland - Galway, IRELAND |
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| Abstract: | The genus Vigna (Fabaceae) consists of five subgenera, and includes more than 100 wild species. In Vigna, 10 crops have been domesticated from three subgenera, Vigna, Plectrotropis, and Ceratotropis. The habitats of wild Vigna species are so diverse that their genomes could harbor various genes responsible for environmental stress adaptation, which could lead to innovations in agriculture. Since some of the gene bank Vigna accessions were unidentified and they seemed to be novel genetic resources, these accessions were identified based on morphological traits. The phylogenetic positions were estimated based on the DNA sequences of nuclear rDNA-ITS and chloroplast atpB-rbcL spacer regions. Based on the results, the potential usefulness of the recently described species V. indica and V. sahyadriana, and some wild Vigna species, i.e., V. aconitifolia, V. dalzelliana, V. khandalensis, V. marina var. oblonga, and V. vexillata, was discussed. |
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