白喉雀（Zonotrichia albicollis (Gmelin)）的染色体多态性。
Chromosomal Polymorphism in the White-Throated Sparrow, Zonotrichia albicollis (Gmelin).
出版信息
Science. 1966 Dec 23;154(3756):1571-2. doi: 10.1126/science.154.3756.1571.
Abstract
In a study of 35 white-throated sparrows five distinct karyotypes were observed. A chromosomal polymorphism is present which involves at least two pairs of macrochromosomes. This species is phenotypically polymorphic with selective breeding occurring between morphs. Phenotype is related to chromosomal constitution, and selective breeding appears to maintain heterozygosity within the population.
摘要
在一项对 35 只白喉雀的研究中，观察到了五种不同的核型。存在一种涉及至少两对大染色体的染色体多态性。该物种表型多态，在形态之间发生选择性繁殖。表型与染色体组成有关，选择性繁殖似乎在种群内保持杂合性。
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