ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2011, Vol. 42 ›› Issue (4): 481-488.doi:

• 遗传繁育 • Previous Articles     Next Articles

Studies on Population Genetic Diversity and Microsatellite Markers for Growth Traits in Luxi Cattle

BI Wei-wei1，CHEN Wei-yun1，WANG Hui1*，WANG Zhong-hua1，ZHANG Yuan2*   

  1. 1. College of Animal Science ＆ Technology, Shandong Agricultural University, Taian 271018, China； 2. College of Animal Science ＆ Technology, ChinaAgricultural University, Beijing 100193, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-04-20 Published:2011-04-20

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Abstract: 8 pairs of polymorphic microsatellites out of 30 microsatellite loci in Luxi cattle chromosome were selected from GenBank. Genetic diversity of Luxi cattle and the relating effects between genotypes and growth traits were analyzed in 120 individuals by using least squares linear model and DNA analysis technique. A total of 34 alleles were detected. Each microsatellite loci in the number of alleles was ranging from 3.6, and the average number of alleles was 4.25. The average heterozygosity (H) was 0.561 3; the polymorphism information content (PIC) was 0.498 3. The results indicated that eight microsatellite loci had significant effect on some growth traits of Luxi cattle (P<0.05 or P<0.01). The most favorable genotypes for interrelated traits were AE at ETH185 for body height, CC at BM711 and BB at BM1824 for body length, AD at TGLA53 and CC at BM711 for cannon girth, BB at BM1824 and AB at DVGA55 for abdominal girth, AC at TGLA53, BD at ETH185, AB at BM711, AC at DVGA46 and BB at DVGA44 and DVGA55 for body weight, respectively While the disadvantageous genotypes were AD at microsatellite loci of DVGA46 and DVGA44, BC genotype at ETH185, AA genotype at DVGA55 loci The results make the genotype useful for markers associated with the growth traits for marker assisted selection.