Genome-wide association study of Gossypium arboreum resistance to reniform nematode.

ABSTRACT:

Background

Reniform nematode (Rotylenchulus reniformis) has emerged as one of the most destructive root pathogens of upland cotton (Gossypium hirsutum) in the United States. Management of R. reniformis has been hindered by the lack of resistant G. hirsutum cultivars; however, resistance has been frequently identified in germplasm accessions from the G. arboreum collection. To determine the genetic basis of reniform nematode resistance, a genome-wide association study (GWAS) was performed using 246 G. arboreum germplasm accessions that were genotyped with 7220 single nucleotide polymorphic (SNP) sequence markers generated from genotyping-by-sequencing.

Results

Fifteen SNPs representing 12 genomic loci distributed over eight chromosomes showed association with reniform nematod

SUBMITTER: Li R 

PROVIDER: S-EPMC6091029 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature