期刊
GENOME
卷 46, 期 1, 页码 48-50出版社
NATL RESEARCH COUNCIL CANADA
DOI: 10.1139/G02-103
关键词
rRNA genes; C value; genome size
Both rDNA gene multiplicity and genome size vary widely eukaroyotes. For some time, there has been debate regarding any possible relationship between these two parameters. The present study uses data on genome size and rDNA copy number for 162 species of plants and animals to test the association between genome size and rDNA copy number, and provides the first convincing evidenc eof a strong positive relationship between the two within and among these two groups of organisms. No simple explanations exist for this relationship, but it is nevertheless of clear relevance from both practical and theoretical perspectives.
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