AI Article Synopsis
- A study used RAPD analysis to assess genetic diversity in 134 cattle samples from two native breeds in Yunnan, China, and four introduced beef breeds.
- Out of 84 scored bands, 63 were polymorphic, showing significant genetic variation among the groups.
- Findings revealed close genetic relationships between Yunnan's DeHong cattle and Brahman, as well as between DiQing cattle and Simmental, suggesting that both Bos indicus and Bos taurus are key ancestral sources for Yunnan’s native cattle.
Article 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.
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| http://dx.doi.org/10.1023/b:bigi.0000012139.37721.ae | DOI Listing |
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