A distinct genetic cluster in cultivated chickpea as revealed by genome-wide marker discovery and genotyping

Abstract

The accurate description of plant biodiversity is of utmost importance to efficiently addressefforts in conservation genetics and breeding. Herein, we report the successful application of agenotyping-by-sequencing (GBS) approach in chickpea (Cicer arietinum L.), resulting in thecharacterization of a cultivated germplasm collection with 3,187 high-quality singlenucleotide polymorphism (SNP) markers. Genetic structure inference, principal componentanalysis and hierarchical clustering all together indicated the identification of a genetic clustercorresponding to black-seeded genotypes traditionally cultivated in Southern Italy.Remarkably, this cluster was clearly distinct at both genetic and phenotypic levels fromgermplasm groups reflecting the commercial chickpea classification in desi and kabuli seedtypes. Fixation index estimates for individual polymorphisms pointed out loci and genomicregions that might be of significance for the diversification of agronomic and commercialtraits. Overall, our findings provide information on genetic relationships within cultivatedchickpea and highlight a gene pool of great interest for the scientific community and chickpeabreeding, which is limited by the low genetic diversity available in the primary gene pool


Autore Pugliese

Tutti gli autori

  • Pavan S.; Lotti C.; Marcotrigiano A.R.; Mazzeo R.; Bardaro N.; Bracuto V.; Ricciardi F.; Taranto F.; D'Agostino N.; Schiavulli A.; De Giovanni C.; Montemurro C.; Sonnante G.; Ricciardi L.

Titolo volume/Rivista

The plant genome


Anno di pubblicazione

2017

ISSN

1940-3372

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile