Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus.

Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Research Abstract Details 

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Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Abstract Text:

Artur Burzy?ski,Ma?gorzata Zbawicka,David O F Skibinski,Roman Wenne,

Many bivalve species, including mussels of the genus Mytilus, are unusual in having two mtDNA genomes, one inherited maternally (the F genome) and the other inherited paternally (the M genome). The sequence differences between the genomes are usually great, indicating ancient divergence predating speciation events. However, in Mytilus trossulus from the Baltic, both genomes are similar to the F genome from the closely related M. edulis. This study analyzed the mtDNA control region structure in male and female Baltic M. trossulus mussels. We show that a great diversity of structural rearrangements is present in both sexes. Sperm samples are dominated by recombinant haplotypes with M. edulis M-like control region segments, some having large duplications. By contrast, the rearranged haplotypes that dominate in eggs lack segments from this M genome. The rearrangements can be explained by a combination of tandem duplication, deletion, and intermolecular recombination. An evolutionary pathway leading to the recombinant haplotypes is suggested. The data are also considered in relation to the hypothesis that the M. edulis M-like control region sequence is necessary to confer the paternal role on genomes that are otherwise F-like.

Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Publishing Authors By Initials

A Burzy?ski,M Zbawicka,DO Skibinski,R Wenne,

For similar genetic phenomena: variation (genetics) research abstracts see: genetic phenomena: variation (genetics) research

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Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Genetics

VOLUME: 174

Page Numbers: 1081-94

Journal Abbreviation: Genetics

ISSN: 0016-6731

DAY: 1

MONTH: 09

YEAR: 2006

Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Information

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LANGUAGE: eng

NlmUniqueID: 374636

Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Keywords Mesh Terms:

KEYWORDS: Variation (Genetics)

MESH TERMS: genetics

Chemical & Substance for Abstract: Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus. Information

Substance Name: DNA, Mitochondrial

Registry Number: 0

Grant and Affiliation Information for Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus.

AFFILIATION: Polish Academy of Sciences, Institute of Oceanology, Department of Genetics and Mariene Biotechnology, Sopot, Poland. burzynski@cbmpan.gdynia.pl

Country: United States

AGENCY: United States PHS

GRANT: 2P04C02629

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MEDLINETA: Genetics

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• Doubly uniparental inheritance is associated with high polymorphism for rearranged and recombinant control region haplotypes in Baltic Mytilus trossulus.