GENETIC-ANALYSIS OF A MUTANT CLASS OF PHYSCOMITRELLA-PATENS IN WHICH THE POLARITY OF GRAVITROPISM IS REVERSED

被引:23
作者
KNIGHT, CD
FUTERS, TS
COVE, DJ
机构
[1] Department of Genetics, University of Leeds, Leeds
来源
MOLECULAR & GENERAL GENETICS | 1991年 / 230卷 / 1-2期
关键词
PHYSCOMITRELLA-PATENS; GRAVITROPISM; GENETIC ANALYSIS;
D O I
10.1007/BF00290643
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
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.
引用
收藏
页码:12 / 16
页数:5
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