Allelic frequencies and association with carcass traits of six genes in local subpopulations of Japanese Black cattle |
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| Authors: | Takahiro Nishimaki Takayuki Ibi Siqintuya Naohiko Kobayashi Tamako Matsuhashi Takayuki Akiyama Emi Yoshida Kazumi Imai Mayu Matsui Keiichi Uemura Hisayoshi Eto Naoto Watanabe Tatsuo Fujita Yosuke Saito Tomohiko Komatsu Hiroshi Hoshiba Hideyuki Mannen Shinji Sasazaki Tetsuo Kunieda |
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| Affiliation: | 1. Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan;2. Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan;3. Gifu Prefectural Hida Region Livestock Hygiene Service Center, Takayama, Gifu, Japan;4. Gifu Prefectural Livestock Research Institute, Takayama, Gifu, Japan;5. Northern Center of Agricultural Technology, General Technological Center of Hyogo Prefecture for Agriculture, Forest and Fishery, Asago, Hyogo, Japan;6. Hiroshima Prefectural Technology Research Institute, Health and Environment Center, Hiroshima, Japan;7. Hiroshima Prefectural Technology Research Institute, Livestock Technology Research Center, Shobara, Hiroshima, Japan;8. Kagawa Prefecture Livestock Experiment Station, Kita‐gun, Kagawa, Japan;9. Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Livestock Research Division, Taketa, Oita, Japan;10. Miyagi Prefectural Livestock Experiment Station, Ohsaki, Miyagi, Japan;11. Yamagata Prefectural Animal Industrial Institute, Agricultural Research Center, Shinjo, Yamagata, Japan;12. Cattle Breeding Development Institute of Kagoshima Prefecture, So, Kagoshima, Japan;13. Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan |
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| Abstract: | Marker‐assisted selection (MAS) is expected to accelerate the genetic improvement of Japanese Black cattle. However, verification of the effects of the genes for MAS in different subpopulations is required prior to the application of MAS. In this study, we investigated the allelic frequencies and genotypic effects for carcass traits of six genes, which can be used in MAS, in eight local subpopulations. These genes are SCD, FASN and SREBP1, which are associated with the fatty acid composition of meat, and NCAPG, MC1R and F11, which are associated with carcass weight, coat color and blood coagulation abnormality, respectively. The frequencies of desirable alleles of SCD and FASN were relatively high and that of NCAPG was relatively low, and NCAPG was significantly associated with several carcass traits, including carcass weight. The proportions of genotypic variance explained by NCAPG to phenotypic variance were 4.83 for carcass weight. We thus confirmed that NCAPG is a useful marker for selection of carcass traits in these subpopulations. In addition, we found that the desirable alleles of six genes showed no negative effects on carcass traits. Therefore, selection using these genes to improve target traits should not have negative impacts on carcass traits. |
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| Keywords: | allelic frequency carcass traits Japanese Black cattle marker‐assisted selection |
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