GENETIC-ANALYSIS OF A MUTANT CLASS OF PHYSCOMITRELLA-PATENS IN WHICH THE POLARITY OF GRAVITROPISM IS REVERSED
GENETIC-ANALYSIS OF A MUTANT CLASS OF PHYSCOMITRELLA-PATENS IN WHICH THE POLARITY OF GRAVITROPISM IS REVERSED
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DOI：
10.1007/bf00290643
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发表时间：
1991-11-01
期刊：
影响因子：
--
通讯作者：
COVE, DJ
中科院分区：
文献类型：
--
作者：
KNIGHT, CD;FUTERS, TS;COVE, DJ
在短生苔藓中，单细胞原丝体和多细胞配子体通过负重力生长来响应相对于重力载体的重新定位。已经确定了一种突变类型，在这种突变类型中，原丝体而不是配子体通过向重力方向生长来做出反应。在这篇文章中，我们描述了这类额外突变体的分离。对这些突变体进行了互补和分离比分析，表明单个基因可能会发生突变，从而改变向重力性的极性。
In the moss Physcomitrella patens, single-cell protonemata and multicellular gametophores respond to reorientation relative to the gravity vector by growing negatively gravitropically. A mutant class in which the protonemata, but not the gametophores, respond by growing towards gravity has been identified. In this paper, we describe the isolation of additional mutants of this class. Complementation and segregation ratio analyses were carried out on these mutants, which indicate that a single gene may mutate to switch the polarity of gravitropism.