A low genomic number of recessive lethals in natural populations of bluefin killifish and zebrafish

Amy R. McCune, Rebecca C. Fuller, Allisan A. Aquilina, Robert M. Dawley, James M. Fadool, David Houle, Joseph Travis, Alexey S. Kondrashov

Research output: Contribution to journalArticlepeer-review

Abstract

Despite the importance of selection against deleterious mutations in natural populations, reliable estimates of the genomic numbers of mutant alleles in wild populations are scarce. We found that, in wild-caught bluefin killifish Lucania goodei (Fundulidae) and wild-caught zebrafish Danio rerio (Cyprinidae), the average numbers of recessive lethal alleles per individual are 1.9 (95% confidence limits 1.3 to 2.6) and 1.4 (95% confidence limits 1.0 to 2.0), respectively. These results, together with data on several Drosophila species and on Xenopus laevis, show that phylogenetically distant animals with different genome sizes and numbers of genes carry similar numbers of lethal mutations.

Original languageEnglish (US)
Pages (from-to)2398-2401
Number of pages4
JournalScience
Volume296
Issue number5577
DOIs
StatePublished - Jun 28 2002
Externally publishedYes

ASJC Scopus subject areas

  • General

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