Heritable variation in testosterone levels in male garter snakes ( Thamnophis sirtalis )
Heritable variation in testosterone levels in male garter snakes ( Thamnophis sirtalis )
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雄性袜带蛇(Thamnophis Sirtalis)睾酮水平的遗传变异
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
C. J. Hubbard
中科院分区:
文献类型:
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作者:
R. King;J. Cline;C. J. Hubbard
Circulating testosterone levels were measured at 195, 318 and 437 days of age in 76 male garter snakes (Thamnophis sirtalis) born to 26 wild-caught females. Testosterone levels increased significantly with increasing mass at all three ages and differed significantly among families at 318 and 437 days.‘Full-sib’ estimates of heritability were near one at 318 and 437 days but these estimates may be inflated by maternal effects, dominance and epistasis. Evidence of heritable variation in circulating testosterone levels suggests that the evolution of traits affected by this hormone (reproductive, territorial and agonistic behaviour; body size and shape) might be mediated through changes in this hormonal control mechanism.
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DOI:
10.1016/s0026-0495(97)90266-3
发表时间:
1997
期刊:
Metabolism: clinical and experimental
影响因子:
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1999
期刊:
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影响因子:
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