May G, Taylor J W
Department of Botany, University of California, Berkeley 94720.
Genetics. 1988 Feb;118(2):213-20. doi: 10.1093/genetics/118.2.213.
Patterns of mating and mitochondrial DNA (mtDNA) inheritance were investigated for the Basidiomycete, Coprinus cinereus in order to better understand the relationship of reproductive biology and mtDNA evolution in fungi. Results showed that the unique mating system of basidiomycetes can lead to the formation of mitochondrial mosaics (i.e., colonies composed of sectors differing in mtDNA). Mitochondria do not migrate along with nuclei during mating. Intracellular mixed or recombinant mtDNA molecules were not observed. Interestingly, it was found that mating asymmetry, caused by nonreciprocal nuclear migration, may be an important part of the reproductive biology of C. cinereus.
为了更好地理解真菌中生殖生物学与线粒体DNA(mtDNA)进化之间的关系,对担子菌灰盖鬼伞的交配模式和mtDNA遗传进行了研究。结果表明,担子菌独特的交配系统可导致线粒体镶嵌体的形成(即由mtDNA不同的扇形区域组成的菌落)。交配过程中线粒体不会随细胞核迁移。未观察到细胞内混合或重组的mtDNA分子。有趣的是,发现由非相互核迁移引起的交配不对称可能是灰盖鬼伞生殖生物学的重要组成部分。