在 PHYSARUM POLYCEPHALUM 中发现新的交配相容性位点。
A New Mating Compatibility Locus in PHYSARUM POLYCEPHALUM.
机构信息
Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139.
出版信息
Genetics. 1979 Apr;91(4):683-93. doi: 10.1093/genetics/91.4.683.
The rate and extent of plasmodium formation were studied in mating tests involving pairs of largely isogenic amoebal strains compatible for mating-type (mt) alleles. A systematic variability was observed: plasmodia formed either rapidly and extensively or slowly and inefficiently. Plasmodium formation was found to be 10(3)- to 10(4)-fold more extensive in "rapid" crosses than in "slow" crosses. A genetic analysis revealed that the variability reflects the influence of a multiallelic compatibility locus that determines mating efficiency. This compatibility locus (designated matB), together with the original mating type locus, mt (in this work designated matA), constitute a tetrapolar mating specificity system in Physarum polycephalum.
我们在涉及配对的阿米巴菌株的交配试验中研究了疟原虫的形成率和程度，这些阿米巴菌株在交配型（mt）等位基因上具有很大的同基因性。观察到系统的可变性：疟原虫的形成要么迅速而广泛，要么缓慢而低效。与“缓慢”交配相比，“快速”交配中疟原虫的形成要广泛 10（3）到 10（4）倍。遗传分析表明，这种可变性反映了一个多等位基因相容性位点的影响，该位点决定了交配效率。这个相容性位点（命名为 matB），与原始的交配型位点 mt（在这项工作中命名为 matA）一起，构成了多头绒泡菌的四极交配特异性系统。
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