• Title/Summary/Keyword: Chinese Domestic Goat

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Genetic Diversity and Origin of Chinese Domestic Goats Revealed by Complete mtDNA D-loop Sequence Variation

  • Liu, R.Y.;Lei, C.Z.;Liu, S.H.;Yang, G.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.2
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    • pp.178-183
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    • 2007
  • China has numerous native domestic goat breeds, but so far there has been no extensive study on genetic diversity, population demographic history, and origin of Chinese goats. To determine the origin and genetic diversity of Chinese goats, we analyzed the complete mtDNA D-loop sequences of 183 goats from 13 breeds. The haplotype diversity value found in each breed ranged from 0.9333 to 1.0000. The nucleotide diversity value ranged from 0.006337 to 0.025194. Our results showed that there were four mtDNA lineages (A, B, C and D), in which lineage A was predominant, lineage B was moderate, and lineages C and D were at low frequencies. Lineages C and D were observed only in the Tibetan breed. The results revealed multiple maternal origins of Chinese domestic goats. There was weaker geographical structuring in the 13 Chinese goat populations, which suggested that there existed high gene flow among goat populations caused by the extensive transportation of goats in the course of history.

Genetic Diversity of Goats from Korea and China Using Microsatellite Analysis

  • Kim, K.S.;Yeo, J.S.;Lee, J.W.;Kim, J.W.;Choi, C.B.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.4
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    • pp.461-465
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    • 2002
  • Nine microsatellite loci were analyzed in 84 random individuals to characterize the genetic variability of three domestic goat breeds found in Korea and China: Korean goat, Chinese goat and Saanen. Allele diversity, heterozygosity, polymorphism information content, F-statistics, indirect estimates of gene flow (Nm) and Nei's standard distances were calculated. Based on the expected mean heterozygosity, the lowest genetic diversity was exhibited in Korean goat ($H_E$=0.381), and the highest in Chinese goat ($H_E$=0.669). After corrections for multiple significance tests, deviations from Hardy-Weinberg equilibrium were statistically significant over all populations and loci, reflecting the deficiencies of heterozygotes (global $F_{IS}$=0.053). Based on pairwise FST and Nm between different breeds, there was a great genetic differentiation between Korean goat and the other two breeds, indicating that these breeds have been genetically subdivided. Similarly, individual clustering based on the proportion of shared alleles showed that Korean goat individuals formed a single cluster separated from the other two goat breeds.

Phylogenetic Analysis of Korean Native Goats Based on the Mitochondrial Cytochrome b Gene (mtDNA Cytochrome b 유전자에 기초한 한국재래염소의 계통유전학적 분석)

  • Kim, Jae-Hwan;Byun, Mi-Jeong;Ko, Yeoung-Gyu;Kim, Sung-Woo;Kim, Sang-Woo;Do, Yoon-Jung;Kim, Myung-Jick;Yoon, Sei-Hyung;Choi, Seong-Bok
    • Journal of Animal Science and Technology
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    • v.54 no.4
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    • pp.241-246
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    • 2012
  • The goal of this study was to verify the phylogenetic status of the Korean native goats (KNG). We determined the complete sequence of the mitochondrial cytochrome b gene in 48 goats among four populations. We also analyzed genetic variability within goats, and a phylogenetic analysis was performed by comparison with other country's goats. Three nucleotide substitutions were detected, and two of these were missense mutations that occurred due to a substitution of amino acid. Four haplotypes were defined from KNG. Three of these haplotypes were only found in the Chinese goat. However, the other haplotype was KNG-specific. In the phylogenetic analysis, four clades (A~D) were classified among domestic goats, and the KNG was classified into clade 1 that estimated as lineage A based on the D-loop sequence. Each haplotype from the KNG was clustered closely with that of the Chinese goat. The results of haplotype distribution and phylogenetic location suggest that strong gene flow occurred from China to the Korean Peninsula.

Preferences of meat food and its related factor in Koreans (한국인의 육류음식에 대한 기호성 및 관련 요인 분석)

  • 윤계순;우자원
    • Korean journal of food and cookery science
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    • v.15 no.5
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    • pp.524-532
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    • 1999
  • This study was carried out to obtain information about preferences of the meat food in 491 Koreans including the ones living in New Zealand. General preference for the meats was not significant differences according to sex, monthly income level, residing area, marriage status and family number. Degree of preferences for the meats which have consumed commonly such as beef, pork and chicken showed relatively a high tendency, but the meats such as goat, lamb, deer and turkey were very low in preference score. In the meats cooking style, most subjects preferred Korean style followed by Chinese and western style. The younger had a high score than the older inpreference of the processed meats. The meat foods subjects preferred were Tzeams, Kui, Tangs, cutlets and Tangsuyuks. There were not significant differences in preferences for the meats between Korean living in domestic and New Zealand. This study showed that the meat foods which theirs preference was high have had a high tendency in the intake frequency also. Preferences for the meat food was affected by intake frequency and amount of intake and nutritional knowledge, but not related to BMI, health status and monthly income level.

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