Development of an integrated 200K SNP genotyping array and application for genetic mapping, genome assembly improvement and genome wide association studies in pear (Pyrus).

ABSTRACT: Pear (Pyrus; 2n = 34), the third most important temperate fruit crop, has great nutritional and economic value. Despite the availability of many genomic resources in pear, it is challenging to genotype novel germplasm resources and breeding progeny in a timely and cost-effective manner. Genotyping arrays can provide fast, efficient and high-throughput genetic characterization of diverse germplasm, genetic mapping and breeding populations. We present here 200K AXIOM® PyrSNP, a large-scale single nucleotide polymorphism (SNP) genotyping array to facilitate genotyping of Pyrus species. A diverse panel of 113 re-sequenced pear genotypes was used to discover SNPs to promote increased adoption of the array. A set of 188 diverse accessions and an F1 population of 98 individuals from 'Cuiguan' × '

SUBMITTER: Li X 

PROVIDER: S-EPMC6662108 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature