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Genetic Relationship in Chicken Breeds Using Molecular Co-ancestry Information
Ahlawat, S.P.S.,Vijh, R.K.,Mishra, Bina,Kumar, S.T. Bharani,Tantia, M.S. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.1
Five chicken populations viz. Chittagong, Ghagus, Kalasthi, Kadaknath, Tellichery were genotyped using 25 highly polymorphic microsatellite loci. White leg horn was taken as an outgroup. To reveal the relationship and distinctiveness among five indigenous breeds various genetic distances based on molecular co-ancestry were estimated and multidimensional scaling was performed. The Ghagus and Kalasthi breeds were closely related and their separation was recent, whereas Chittagong had a remote ancestry with other indigenous chicken populations.
Multilocus Genotyping to Study Population Structure in Three Buffalo Populations of India
Tantia, M.S.,Vijh, R.K.,Mishra, Bina,Kumar, S.T. Bharani,Arora, Reena Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.8
Three buffalo populations viz. Bhadawari, Tarai and local buffaloes of Kerala were genotyped using 24 heterologous polymorphic microsatellite loci. A total of 140 alleles were observed with an average observed heterozygosity of 0.63. All the loci were neutral and 18 out of the 24 loci were in Hardy Weinberg Equilibrium. The $F_{IS}$ values (estimate of inbreeding) for 16 loci in all the three populations were negative. This indicated lack of population structure in the three populations. The effective number of immigrants was 5.88 per generation between the Tarai and Bhadawari populations which was quite high suggesting substantial gene flow. The genetic distances revealed closeness between the Tarai and Bhadawari populations which was expected from geographical contiguity. The FST values were not significantly different from zero showing no population differentiation. The Correspondence Analysis based on the allelic frequency data clustered the majority of the Tarai and Bhadawari individuals as an admixture.
Microsatellite Analysis of Three Poultry Breeds of India
Pandey, A.K.,Tantia, M.S.,Kumar, Dinesh,Mishra, Bina,Chaudhary, Preeti,Vijh, R.K. Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.11
The genetic variability of three poultry breeds namely Aseel, Miri and Nicobari taken from different geographical locations of India were evaluated using 15 microsatellite loci. No. of alleles varied from 3 to 9 in Aseel, 3 to 8 in Miri and 2 to 7 in Nicobari. Mean PIC values in Aseel, Miri and Nicobari breeds were 0.64, 0.66 and 0.63, respectively. Average unbiased heterozygosity and direct count heterozygosity were 0.65 and 0.59, 0.68 and 0.61, and 0.64 and 0.57 in Aseel, Miri and Nicobari breeds, respectively. High heterozygosity values revealed in this study are indicative of low level of inbreeding, large population size and no or low selection pressure for commercial trait in all three populations. The estimate of genetic distances using Nei's standard, Nei's minimum and Reynold's distance revealed Aseel and Nicobari to be more closely related than Miri breed of poultry.