CHLAMYDOMONAS REINHARDI - HETEROZYGOUS DIPLOID STRAINS
CHLAMYDOMONAS REINHARDI - HETEROZYGOUS DIPLOID STRAINS
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DOI：
10.1126/science.157.3787.447
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发表时间：
1967-01-01
期刊：
影响因子：
56.9
通讯作者：
EBERSOLD, WT
中科院分区：
文献类型：
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作者：
EBERSOLD, WT
单细胞绿藻莱茵衣藻的合子有时会进行有丝分裂，产生稳定的二倍体营养株。除了起源模式外，这些菌株与单倍体的区别还在于细胞和核大小、每个核的 DNA 含量和染色体数目。多种突变基因杂合的二倍体菌株在表型上为野生型和交配型负型。因此，这些突变基因对于它们的野生型等位基因是隐性的，并且交配型-负等位基因相对于交配型-plu等位基因是显性的。
Zygotes of the unicellular green alga Chlamydomonas reinhardi occasionally divide mitotically to give rise to stable diploid vegetative strains. As well as by their mode of origin, these strains are distinguished from haploids by cell and nuclear size, DNA content per nucleus, and chromosome number. Diploid strains heterozygous for a variety of mutant genes are phe-notypically wild type and mating-type minus. Thus these mutant genes are recessive to their wild-type alleles, and the mating-type-minus is dominant over the mating-type-plue allele.