Genetic and QTL mapping in African bermudagrass

作者：Shuhao Yu, Tilin Fang, Hongxu Dong, Liuling Yan, Dennis L. Martin, Justin Q. Moss, Charles Fontanier, Yanqi Wu · 发表于：The Plant Genome · 年份：2021 · DOI：10.1002/tpg2.20073 · 被引用次数：13 · 研究领域：Turfgrass Adaptation and Management、Plant Disease Resistance and Genetics、Wheat and Barley Genetics and Pathology

Abstract Cynodon transvaalensis Burtt‐Davy is frequently used to cross with C. dactylon Pers. in the creation of F 1 hybrid cultivars that are some of the most widely used in the worldwide turf industry. However, molecular resource development in this species is limited. Accordingly, the objectives of this study were to construct a high‐density genetic map, and to identify genomic regions associated with establishment rate. In this study, we constructed the first high‐density linkage map for African bermudagrass using a genotyping by sequencing approach based on 109 S 1 progenies. A total of 1,246 single nucleotide polymorphisms and 32 simple sequence repeat markers were integrated in the linkage map. The total length of nine linkage groups was 882.3 cM, with an average distance of 0.69 cM per interval. Four genomic regions were identified to be associated with sod establishment rate. The results provide important genetic resources towards understanding the genome as well as marker‐assisted selection for improving the establishment rate in bermudagrass breeding.