| Literature DB >> 17807298 |
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.Entities:
Year: 1966 PMID: 17807298 DOI: 10.1126/science.154.3756.1571
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728