HERITABILITY OF EXTERNAL MORPHOLOGY IN DARWIN FINCHES
HERITABILITY OF EXTERNAL MORPHOLOGY IN DARWIN FINCHES
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DOI：
10.1038/274793a0
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发表时间：
1978-01-01
期刊：
影响因子：
64.8
通讯作者：
GRANT, PR
中科院分区：
文献类型：
--
作者：
BOAG, PT;GRANT, PR
生态学家使用鸟类形态特征的测量来检验和修正进化理论。但实际上对这些特征的遗传一无所知，尽管理论通常基于遗传模型。因此，无论是含蓄地还是明确地，鸟类生态学家几乎不约而同地使用了表型和基因型这两个术语。与此同时，理论家在计算中假设遗传率等于1。当种内变异本身成为关注的焦点时，这个问题就特别尖锐，就像在生态位变异假说的研究中一样。我们在这里表明，几个生态意义的字符有很高的遗传力在达尔文的中地雀（Geospiza fortis）。
ECOLOGISTS use measurements of avian morphological characters to test and modify evolutionary theories. But virtually nothing is known about the inheritance of such characters, although the theories are usually based on genetic models. As a result, either implicitly or explicitly, avian ecologists have used the terms phenotype and genotype almost interchangeably1. At the same time, theoreticians have assumed in their calculations that heritabilities are equal to one2. This problem is particularly acute when intraspecific variation itself is the focus of attention, as it is in studies of the niche-variation hypothesis1. We show here that several ecologically significant characters have high heritabilities in Darwin's medium ground finch (Geospiza fortis).