基因 b1 中的转化：6:2 的极性和异常 4:4 分离的反转极性。

Conversion in gene b1 of Ascobolus: Polarity of 6:2 and inverted polarity of aberrant 4:4 segregations.

机构信息

Laboratoire de Génétique Paris-Sud, Bât. 400, F-91405, Orsay Cedex, France.

出版信息

Curr Genet. 1984 Apr;8(3):189-97. doi: 10.1007/BF00417815.

Abstract

Thirteen mutations located in gene b1 of Ascobolus immersus were studied for their non-mendelian segregation patterns. All these motations yield post-meiotic segregations. The non-mendelian segregation frequencies are the highest for the left end mutations. From left to right, the frequency of aberrant 4:4 asci increases. The hybrid DNA formation and distribution pattern as deduced from this result is consistent with that previously found in gene b2, providing further support to the Aviemore model. The frequency of 6:2 asci decreases from left to right. This constitutes an entirely new observation, the meaning of which is discussed.

摘要

研究了位于 Ascobolus immersus 基因 b1 中的 13 个突变，以研究其非孟德尔分离模式。所有这些突变都产生了减数分裂后分离。左侧末端突变的非孟德尔分离频率最高。从左到右，异常 4:4 ascus 的频率增加。从这个结果推断出的杂种 DNA 形成和分布模式与之前在基因 b2 中发现的模式一致，为 Aviemore 模型提供了进一步的支持。6:2 asci 的频率从左到右降低。这是一个全新的观察结果，讨论了其意义。