title: Genetic diversity and relationship of Yunnan native cattle breeds and introduced beef cattle breeds.
abstract: In this study, random amplified polymorphic DNA (RAPD) analysis was used to estimate genetic diversity and relationship in 134 samples belonging to two native cattle breeds from the Yunnan province of China (DeHong cattle and DiQing cattle) and four introduced beef cattle breeds (Brahman, Simmental, MurryGrey, and ShortHorn). Ten primers were used, and a total of 84 bands were scored, of which 63 bands (75.0%) were polymorphic. The genetic distance matrix was obtained by proportions of shared fragment. The results indicate that the Yunnnan DeHong cattle breed is closely related to the Brahman (Bos indicus), and the Yunnan DiQing cattle breed is closely related to the Simmental, ShortHorn, and MurryGrey (Bos taurus) breeds. Our results imply that Bos indicus and Bos taurus were the two main origins of Yunnan native cattle. The results also provide the basic genetic materials for conservation of cattle resources and crossbreeding of beef cattle breeds in South China.
authors.affiliation: Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Yu
authors.forename: Lin-Sheng
authors.initials: LS
authors.lastname: Lian
authors.forename: Ji-Kun
authors.initials: JK
authors.lastname: Wen
authors.forename: Xian-Wei
authors.initials: XW
authors.lastname: Shi
authors.forename: Fang-Xian
authors.initials: FX
authors.lastname: Zhu
authors.forename: Long
authors.initials: L
authors.lastname: Nie
authors.forename: Ya-Ping
authors.initials: YP
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001947:Breeding; D002417:Cattle / Q000235:genetics*; D002681:China; D014644:Genetic Variation; D005828:Genetics, Population; D008460:Meat; D010802:Phylogeny; D011110:Polymorphism, Genetic; D019105:Random Amplified Polymorphic DNA Technique