Abstract
Ten single nucleotide polymorphisms were used for genotyping of 176 Tongshan Black-boned goats, which are Chinese indigenous goat colony for meat production. The average individual heterozygosity was 0.292. To assess the correlations between individual heterozygosity and growth in Tongshan Black-boned goat individuals, and the potential of using individual heterozygosity as an indicator of growth, the data of growth traits, including body weight, height at withers, body length, chest girth and cannon circumference, were collected. Significant correlations were observed between individual heterozygosity and body weight, height at withers, body length, heart girth, cannon circumference (P < 0.05). All the significant regression showed positive slope with R square values ranged from 0.0251 to 0.0368. These data suggests that individual heterozygosity is positively correlated with growth traits in Tongshan Black-boned goat individuals and associative overdominance may affect Tongshan Black-boned goat growth significantly. Therefore it is possible to use individual heterozygosity as an indicator of growth. Our results also provide a strong support to the overdominance hypothesis.
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Acknowledgments
The project was financially supported by the China National Meat-type Sheep and Goat Industrial Technology System (CARS-39-1A). We express our gratitude to the Tongshan Black-boned Goat Breeding Co., Ltd for providing samples plus data.
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Han, Y.G., Liu, G.Q., Jiang, X.P. et al. Investigation of individual heterozygosity correlated to growth traits in Tongshan Black-boned goat. Mol Biol Rep 40, 6075–6079 (2013). https://doi.org/10.1007/s11033-013-2717-x
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DOI: https://doi.org/10.1007/s11033-013-2717-x