植物线粒体遗传的研究进展

对植物线粒体遗传方式、遗传机理的最新进展进行了综述。被子植物线粒体的遗传方式以单亲母系遗传占绝对的统治地位,在裸子植物中,不同的种差别较大,松科、红豆杉科线粒体多为母系遗传,而南洋杉科、杉科、柏科和三尖杉科的线粒体主要为父系遗传方式。绝大数植物线粒体遗传有其不同于质体遗传的特征,线粒体在雄性生殖细胞中持续存在,甚至参与受精进入合子,但又更多地表现为母系遗传。

Research progress of mitochondrial inheritance in plant

Genetic pattern and genetic mechanisms of plant mitochondrias were summarized in the paper.The single maternal inheritance was the absolute dominance of the mitochondrial genetic manners of angiosperm.In gymnosperm,the different species vary greatly,the mitochondrias of most species of Pinaceae,Taxaceae were maternal inheritance,and the mitochondrias of most species of Araucariaceae,Taxodiaceae,Cupressaceae and Cephalotaxaceae were paternal inheritance.The most plant mitochonrias had their different genetic characteristics of plasmid inheritance.Mitochondria in the male germ cells persistly existed and even participated in the fertilization process and entered into the zygote and showed maternal inheritace.