Single nucleotide polymorphisms reveal genetic diversity in New Mexican chile peppers (Capsicum spp.).

ABSTRACT:

Background

Chile peppers (Capsicum spp.) are among the most important horticultural crops in the world due to their number of uses. They are considered a major cultural and economic crop in the state of New Mexico in the United States. Evaluating genetic diversity in current New Mexican germplasm would facilitate genetic improvement for different traits. This study assessed genetic diversity, population structure, and linkage disequilibrium (LD) among 165 chile pepper genotypes using single nucleotide polymorphism (SNP) markers derived from genotyping-by-sequencing (GBS).

Results

A GBS approach identified 66,750 high-quality SNP markers with known map positions distributed across the 12 chromosomes of Capsicum. Principal components analysis revealed four distinct clusters ba

SUBMITTER: Lozada DN 

PROVIDER: S-EPMC8130101 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature