PATERNAL LEAKAGE OF MITOCHONDRIAL DNA IN A FUCUS (PHAEOPHYCEAE) HYBRID ZONE(1)

© 2009 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 45(2009), 3 vom: 01. Juni, Seite 621-4
1. Verfasser: Hoarau, Galice (VerfasserIn)
Weitere Verfasser: Coyer, James A, Olsen, Jeanine L
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Fucus heteroplasmy hybrids mitochondria mtDNA organelle inheritance
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520 |a Eukaryotic mitochondria are mostly uniparentally (maternally) inherited, although mtDNA heteroplasmy has been reported in all major lineages. Heteroplasmy, the presence of more than one mitochondrial genome in an individual, can arise from recombination, point mutations, or by occasional transmission of the paternal mtDNA (=paternal leakage). Here, we report the first evidence of mtDNA paternal leakage in brown algae. In Denmark, where Fucus serratus L. and Fucus evanescens C. Agardh have hybridized for years, we found eight introgressed individuals that possessed the very distinct haplotypes of each parental species. The finding of heteroplasmy in individuals resulting from several generations of backcrosses suggests that paternal leakage occurred in earlier generations and has persisted through several meiotic bottlenecks 
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700 1 |a Coyer, James A  |e verfasserin  |4 aut 
700 1 |a Olsen, Jeanine L  |e verfasserin  |4 aut 
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