MATERNAL EFFECTS AND THE POTENTIAL FOR EVOLUTION IN A NATURAL POPULATION OF ANIMALS
MATERNAL EFFECTS AND THE POTENTIAL FOR EVOLUTION IN A NATURAL POPULATION OF ANIMALS
复制标题
自然动物种群中的母体影响和进化潜力
DOI：
10.1111/j.0014-3820.2002.tb01396.x
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
D. Berteaux
中科院分区：
文献类型：
--
作者：
A. McAdam;S. Boutin;D. Réale;D. Berteaux
摘要母性效应广泛存在，可以对进化动力学产生巨大影响，但其遗传基础在自然种群中很少被测量到。我们使用交叉培养技术和对红松鼠自然种群的长期研究，估计了直接(遗传力)和间接(母体)对进化潜力的影响。幼鱼在体重和体型上的生长都有显著的遗传变异(质量h2=0.10；体型h2=0.33)，但经历了较大的、可遗传的母体效应。体重的增长在直接遗传效应和母体遗传效应之间也有很大的正协方差。对这些间接遗传效应的考虑显示，体重增长的进化潜力(HT2=0.36)比仅用遗传力预测的增长潜力增加了三倍以上。因此，简单的遗传力可能会严重低估或高估动物自然种群的进化潜力。通讯编辑：T.Mousseau
Abstract Maternal effects are widespread and can have dramatic influences on evolutionary dynamics, but their genetic basis has been measured rarely in natural populations. We used cross-fostering techniques and a long-term study of a natural population of red squirrels, Tamiasciurus hudsonicus, to estimate both direct (heritability) and indirect (maternal) influences on the potential for evolution. Juvenile growth in both body mass and size had significant amounts of genetic variation (mass h2 = 0.10; size h2 = 0.33), but experienced large, heritable maternal effects. Growth in body mass also had a large positive covariance between direct and maternal genetic effects. The consideration of these indirect genetic effects revealed a greater than three-fold increase in the potential for evolution of growth in body mass (ht2 = 0.36) relative to that predicted by heritability alone. Simple heritabilities, therefore, may severely underestimate or overestimate the potential for evolution in natural populations of animals. Corresponding Editor: T. Mousseau
选择不同早期发育率的小鼠的子宫和产后母体效应。
影响因子：
3.3
作者：
Rhees,BK;Ernst,CA;Miao,CH;Atchley,WR
通讯作者：
Atchley,WR