Domesticating Vigna Stipulacea : A Potential Legume Crop With Broad Resistance to Biotic Stresses

Though crossing wild relatives to modern cultivars is a usual means to introduce alleles of stress tolerance, an alternative is domesticating wild species that are already tolerant to various kinds of stresses. As a test case, we chose Kuntze, which has fast growth, short vegetative stage, and broad...

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Published inFrontiers in plant science Vol. 10; p. 1607
Main Authors Takahashi, Yu, Sakai, Hiroaki, Yoshitsu, Yuki, Muto, Chiaki, Anai, Toyoaki, Pandiyan, Muthaiyan, Senthil, Natesan, Tomooka, Norihiko, Naito, Ken
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 06.12.2019
Subjects
legume
mutant screening
plant domestication
Plant Science
seed dormancy
Vigna
wild species
mutant screening
wild species
seed dormancy
legume
plant domestication
bulked segregant analysis
Vigna
pod shattering
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Summary:Though crossing wild relatives to modern cultivars is a usual means to introduce alleles of stress tolerance, an alternative is domesticating wild species that are already tolerant to various kinds of stresses. As a test case, we chose Kuntze, which has fast growth, short vegetative stage, and broad resistance to pests and diseases. We developed an ethyl methanesulfonate-mutagenized population and obtained three mutants with reduced seed dormancy and one with reduced pod shattering. We crossed one of the mutants of less seed dormancy to the wild type and confirmed that the phenotype was inherited in a Mendelian manner. assembly of genome, and the following resequencing of the F2 progenies successfully identified a Single Nucleotide Polymorphism (SNP) associated with seed dormancy. By crossing and pyramiding the mutant phenotypes, we will be able to turn into a crop which is yet primitive but can be cultivated without pesticides.
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Reviewed by: R. Varma Penmetsa, University of California, Davis, United States; Robert Henry, University of Queensland, Australia
Edited by: Eric Von Wettberg, University of Vermont, United States
This article was submitted to Plant Breeding, a section of the journal Frontiers in Plant Science
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2019.01607