論文ID: 011101
Native chickens in Myanmar and Thailand have been being domesticated for generations and yielded a wide variety of chickens. The objective of the research is to analyze the genetic variation and relationships of native chicken populations in Myanmar and Thailand. A total number of 249 genomic DNA samples from a total nine populations including the commercial lines, were genotyped using 98 autosomal SNP markers. The average heterozygosity of each population was in the range of 0.181—0.262. The neighbor—joining trees constructed by pair—wise FST estimates corresponded that the native chickens in Myanmar and Thailand were at a distance from the commercial chickens. The STRUCTURE analysis revealed that the nine chicken populations used in this study might be derived from six genetic populations (K=6). The AMOVA showed significant value of FST with 79—90% of the total genetic variation found within populations. The FCT value was significant but accounted for only 4.45% of the total variability among countries. Finally, the mantel test for Isolation by Distance result (r = 0.5964; P<0.01) suggested the contribution of geographic distance to the genetic structure of native chicken populations in Myanmar and Thailand.
