Dominant maternal-effect mutations causing embryonic lethality in Caenorhabditis elegans.
Dominant maternal-effect mutations causing embryonic lethality in Caenorhabditis elegans.
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导致秀丽隐杆线虫胚胎死亡的显性母体效应突变。
DOI:
10.1093/genetics/125.2.351
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发表时间:
1990
期刊:
影响因子:
3.3
通讯作者:
Wood,WB
中科院分区:
文献类型:
--
作者:
Mains,PE;Sulston,IA;Wood,WB
We undertook screens for dominant, temperature-sensitive, maternal-effect embryonic-lethal mutations of Caenorhabditis elegans as a way to identify certain classes of genes with early embryonic functions, in particular those that are members of multigene families and those that are required in two copies for normal development. The screens have identified eight mutations, representing six loci. Mutations at three of the loci result in only maternal effects on embryonic viability. Mutations at the remaining three loci cause additional nonmaternal (zygotic) effects, including recessive lethality or sterility and dominant male mating defects. Mutations at five of the loci cause visible pregastrulation defects. Three mutations appear to be allelic with a recessive mutation of let-354. Gene dosage experiments indicate that one mutation may be a loss-of-function allele at a haploin sufficient locus. The other mutations appear to result in gain-of-function ``poison'' gene products. Most of these become less deleterious as the relative dosage of the corresponding wild-type allele is increased; we show that relative self-progeny viabilities for the relevant hermaphrodite genotypes are generally M/+/+ > M/+ > M/M/+ > M/Df > M/M, where M represents the dominant mutant allele.
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影响因子:
2.7
作者:
E. Schierenberg;Johji Miwa;G. Ehrenstein
通讯作者:
G. Ehrenstein
影响因子:
2.7
作者:
CASSADA, R;ISNENGHI, E;VONEHRENSTEIN, G
通讯作者:
VONEHRENSTEIN, G
影响因子:
2.7
作者:
K. Kemphues;Nurit Wolf;W. Wood;D. Hirsh
通讯作者:
D. Hirsh
影响因子:
5.6
作者:
MACLEOD, AR;WATERSTON, RH;BRENNER, S
通讯作者:
BRENNER, S
影响因子:
1.5
作者:
HOWELL, AM;GILMOUR, SG;ROSE, AM
通讯作者:
ROSE, AM