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Research Project: Genomics and Genetic Improvement of Disease Resistance and Horticultural Characteristics of Watermelon, Broccoli, and Leafy Brassicas

Location: Vegetable Research

Title: Evaluation of a public immortal B. oleracea mapping population illuminates complex horticultural quality traits in broccoli

item STANSELL, Z - Cornell University
item BJORKMAN, T - Cornell University
item Farnham, Mark

Submitted to: Plant and Animal Genome Conference
Publication Type: Abstract Only
Publication Acceptance Date: 12/1/2018
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: We characterized a publicly available double-haploid B. oleracea biparental mapping population [BolTBDH; {Chinese kale x broccoli}; N=175] segregating for 25 traits of horticultural interest by applying genotype-by-sequencing, QTL identification, and candidate gene analyses. We identified physical locations of 51 single and 31 epistatic QTL and their candidate genes within six trait classes: architecture , biomass , bud morphology , leaf morphology , head quality , and phenology . Additionally, we generated high quality genome-wide SNPs and compared parallel QTL mapping outcomes using three reference genomes: single organism, pangenome, and long-read/optical mapping assemblies.