Pursuing the quest for better understanding the taxonomic distribution of the system of doubly uniparental inheritance of mtDNA

PeerJ

article

Arthur Gusman¹  Sophia Lecomte²  Donald T. Stewart³  Marco Passamonti⁴  Sophie Breton¹ 

[1] Department of Biological Sciences, Université de Montréal;Department of Biological Sciences, Université de Strasbourg;Department of Biology, Acadia University;Department of Biological Geological and Environmental Sciences, University of Bologna

关键词: Mitochondrial DNA;    Doubly uniparental inheritance;    Bivalvia;    Mitochondrial inheritance;    Yoldia hyperborea;    Scrobicularia plana;   

DOI  :  10.7717/peerj.2760

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

There is only one exception to strict maternal inheritance of mitochondrial DNA (mtDNA) in the animal kingdom: a system named doubly uniparental inheritance (DUI), which is found in several bivalve species. Why and how such a radically different system of mitochondrial transmission evolved in bivalve remains obscure. Obtaining a more complete taxonomic distribution of DUI in the Bivalvia may help to better understand its origin and function. In this study we provide evidence for the presence of sex-linked heteroplasmy (thus the possible presence of DUI) in two bivalve species, i.e., the nuculanoid Yoldia hyperborea(Gould, 1841)and the veneroid Scrobicularia plana(Da Costa,1778), increasing the number of families in which DUI has been found by two. An update on the taxonomic distribution of DUI in the Bivalvia is also presented.

【 授权许可】

CC BY