Multiple post-domestication origins of kabuli chickpea through allelic variation in a diversification-associated transcription factor

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 211(2016), 4 vom: 27. Sept., Seite 1440-51
1. Verfasser:	Varma Penmetsa, R (VerfasserIn)
Weitere Verfasser:	Carrasquilla-Garcia, Noelia, Bergmann, Emily M, Vance, Lisa, Castro, Brenna, Kassa, Mulualem T, Sarma, Birinchi K, Datta, Subhojit, Farmer, Andrew D, Baek, Jong-Min, Coyne, Clarice J, Varshney, Rajeev K, von Wettberg, Eric J B, Cook, Douglas R
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2016
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Research Support, U.S. Gov't, Non-P.H.S. Cicer arietinum Mendel's A locus basic helix-loop-helix (bHLH) transcription factor chickpea B locus diversification domestication legume ortholog Basic Helix-Loop-Helix Leucine Zipper Transcription Factors

Beschreibung
Zusammenfassung:	© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust. Chickpea (Cicer arietinum) is among the founder crops domesticated in the Fertile Crescent. One of two major forms of chickpea, the so-called kabuli type, has white flowers and light-colored seed coats, properties not known to exist in the wild progenitor. The origin of the kabuli form has been enigmatic. We genotyped a collection of wild and cultivated chickpea genotypes with 538 single nucleotide polymorphisms (SNPs) and examined patterns of molecular diversity relative to geographical sources and market types. In addition, we examined sequence and expression variation in candidate anthocyanin biosynthetic pathway genes. A reduction in genetic diversity and extensive genetic admixture distinguish cultivated chickpea from its wild progenitor species. Among germplasm, the kabuli form is polyphyletic. We identified a basic helix-loop-helix (bHLH) transcription factor at chickpea's B locus that conditions flower and seed colors, orthologous to Mendel's A gene of garden pea, whose loss of function is associated invariantly with the kabuli type of chickpea. From the polyphyletic distribution of the kabuli form in germplasm, an absence of nested variation within the bHLH gene and invariant association of loss of function of bHLH among the kabuli type, we conclude that the kabuli form arose multiple times during the phase of phenotypic diversification after initial domestication of cultivated chickpea
Beschreibung:	Date Completed 26.01.2018 Date Revised 30.09.2020 published: Print-Electronic GENBANK: ICC4958, IG74036, PI489777 Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.14010