Genomic selection reveals hidden relatedness and increased breeding efficiency in western redcedar polycross breeding.

ABSTRACT: Western redcedar (WRC) is an ecologically and economically important forest tree species characterized by low genetic diversity with high self-compatibility and high heartwood durability. Using sequence capture genotyping of target genic and non-genic regions, we genotyped 44 parent trees and 1520 offspring trees representing 26 polycross (PX) families collected from three progeny test sites using 45,378 SNPs. Trees were phenotyped for eight traits related to growth, heartwood and foliar chemistry associated with wood durability and deer browse resistance. We used the genomic realized relationship matrix for paternity assignment, maternal pedigree correction, and to estimate genetic parameters. We compared genomics-based (GBLUP) and two pedigree-based (ABLUP: polycross and reconstru

SUBMITTER: Gamal El-Dien O 

PROVIDER: S-EPMC9423091 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature