HETEROPLASMY SUGGESTS LIMITED BIPARENTAL INHERITANCE OF MYTILUS MITOCHONDRIAL-DNA

被引：181

作者：

HOEH, WR

BLAKLEY, KH

BROWN, WM

机构：

[1] UNIV MICHIGAN,DEPT BIOL,ANN ARBOR,MI 48109

[2] UNIV MICHIGAN,MUSEUM ZOOL,MOLEC SYSTEMAT LAB,ANN ARBOR,MI 48109

来源：

SCIENCE | 1991年 / 251卷 / 5000期

关键词：

D O I：

10.1126/science.1672472

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Strict maternal inheritance of mitochondrial DNA is commonly observed in animals. There is usually only one mitochondrial DNA population (homoplasmy) within an individual. Mussels of the Mytilus edulis species group appear to be exceptions in both respects. Of 150 Mytilus individuals examined, 85 were heteroplasmic. Mitochondrial DNA types within heteroplasmic individuals differed greatly; in one comparison, the inferred sequence difference was 20 +/- 5 percent. Homoplasmic individuals with mitochondrial DNA similar to the heteroplasmic mitochondrial DNA types were found. These observations are best explained by the hypothesis that biparental inheritance of mitochondrial DNA can occur in Mytilus.

引用

页码：1488 / 1490

页数：3

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