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Proc Natl Acad Sci U S A. 2005 Oct 25;102(43):15518-22. Epub 2005 Oct 17.

Molecular signatures for sex in the Placozoa.

Signorovitch AY, Dellaporta SL, Buss LW.

Source

Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511, USA. ana.signorovitch@yale.edu

Abstract

Placozoans, the simplest free-living animals, have never been observed to reproduce sexually. Here, we describe molecular evidence for sexual reproduction within one clade of the Placozoa. In a population sample of 10 individuals, within-individual and overall nucleotide diversity were similar to each other and consistent with levels observed in sexually reproducing species. Intergenic recombination as well as the sharing of alleles between heterozygous and homozygous individuals was also observed. These hallmarks of sexual reproduction establish that sex is indeed present in this phylum.

PMID:: 16230622; [PubMed - indexed for MEDLINE]
PMCID: PMC1266089

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5T32 GM 07499-28/GM/NIGMS NIH HHS/United States

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Nucleotide
Primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.
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Taxonomy via GenBank
Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).
Protein
Protein translation features of primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.
PopSet
Sets of sequences from population and evolutionary genetic studies in the PopSet database reported in the current articles.
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