Mapping and selection of downy mildew resistance in spinach cv. whale by low coverage whole genome sequencing.

ABSTRACT: Spinach (Spinacia oleracea) is a popular leafy vegetable crop and commercial production is centered in California and Arizona in the US. The oomycete Peronospora effusa causes the most important disease in spinach, downy mildew. A total of nineteen races of P. effusa are known, with more than 15 documented in the last three decades, and the regular emergence of new races is continually overcoming the genetic resistance to the pathogen. This study aimed to finely map the downy mildew resistance locus RPF3 in spinach, identify single nucleotide polymorphism (SNP) markers associated with the resistance, refine the candidate genes responsible for the resistance, and evaluate the prediction performance using multiple machine learning genomic prediction (GP) methods.

SUBMITTER: Bhattarai G 

PROVIDER: S-EPMC9583407 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature