Whole-genome Resequencing of Kecai Yaks
This study performs whole-genome resequencing of Kecai yaks combined with population genomic, mitochondrial, and Y-chromosome analyses to clarify their genome-wide genetic variation, population structure, maternal and paternal ancestry, and selection signatures. By comparing Kecai yaks with other Chinese domestic yak breeds and wild yaks, we aim to characterize their genetic distinctiveness, diversity level, and evolutionary relationships, and identify candidate genes and pathways underlying adaptation to high-altitude hypoxia, cold tolerance, growth, reproduction, and meat quality. The findings provide key genomic resources for the scientific conservation, germplasm identification, genetic improvement, and molecular breeding of Kecai yaks, while deepening understanding of yak domestication and adaptive evolution on the Qinghai-Tibet Plateau.