A Third Multiallelic Mating-type Locus in Physarum polycephalum
A Third Multiallelic Mating-type Locus in Physarum polycephalum
复制标题
多头绒泡菌中第三个多等位基因交配型基因座
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
Robert Anderson
中科院分区：
文献类型：
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作者：
S. Kawano;T. Kuroiwa;Robert Anderson
摘要：多头绒泡菌的有性发育（杂交）发生在两个单倍体变形虫融合形成二倍体原质团时。imz基因座影响可发生交叉的最大pH。一个新的imz等位基因被发现，使等位基因总数达到三个。与早期的发现相反，已经表明，所有的imz等位基因的同源等位基因组合显示出类似的杂交pH限制，这低于imz-异源等位基因组合。结果表明，imz是一个交配亲和位点，多头绒螯蟹的交配型系统由3个多等位基因位点组成：matA、matB和imz。建议将imz重命名为matC。
SUMMARY: Sexual development (crossing) in Physarum polycephalum occurs when two haploid amoebae fuse to form a diploid plasmodium. The imz locus influences the maximum pH at which crossing can occur. A new allele of imz has been identified, bringing the total number of alleles to three. Contrary to earlier findings, it has been shown that all homoallelic combinations of imz alleles display a similar pH limit for crossing, which is lower than that for imz-heteroallelic combinations. It is concluded that imz is a mating compatibility locus; thus the mating-type system of P. polycephalum comprises three multiallelic loci: matA, matB and imz. It is proposed that imz be renamed matC.