The genetics of a putative social trait in natural populations of yeast.
The genetics of a putative social trait in natural populations of yeast.
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DOI：
10.1111/mec.12904
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发表时间：
2014-10
影响因子：
4.9
通讯作者：
Greig D
中科院分区：
文献类型：
--
作者：
Bozdag GO;Greig D
酵母细胞共享分泌的转化酶是一个成熟的实验室合作模式，但这种合作在自然界中发生的唯一证据是编码转化酶的SUC基因座在数量和功能上有所不同。不产生转化酶的基因型可以在实验室实验中充当“骗子”，在转化酶生产者或“合作者”消化蔗糖时释放的葡萄糖上生长。然而，转化酶产生的遗传变异可能是由于不同种群对不同地区蔗糖（转化酶的底物）可用性的适应。本研究发现，从自然生境中分离的110株野生酵母菌株均含有单个SUC位点并产生转化酶；没有人是“骗子”。我们发现的唯一遗传变异是从富含蔗糖的花蜜中分离出来的三株菌株，它们从亚端粒的三个额外的SUC位点产生更高水平的转化酶。我们认为，局部适应比社会冲突更能解释SUC基因变异的模式。
The sharing of secreted invertase by yeast cells is a well-established laboratory model for cooperation, but the only evidence that such cooperation occurs in nature is that the SUC loci, which encode invertase, vary in number and functionality. Genotypes that do not produce invertase can act as ‘cheats’ in laboratory experiments, growing on the glucose that is released when invertase producers, or ‘cooperators’, digest sucrose. However, genetic variation for invertase production might instead be explained by adaptation of different populations to different local availabilities of sucrose, the substrate for invertase. Here we find that 110 wild yeast strains isolated from natural habitats, and all contained a single SUC locus and produced invertase; none were ‘cheats’. The only genetic variants we found were three strains isolated instead from sucrose-rich nectar, which produced higher levels of invertase from three additional SUC loci at their subtelomeres. We argue that the pattern of SUC gene variation is better explained by local adaptation than by social conflict.
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DOI：
10.1098/rsbl.2003.0083
发表时间：
2004-02-07
影响因子：
4.7
作者：
Greig, D;Travisano, M
通讯作者：
Travisano, M
影响因子：
1.2
作者：
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通讯作者：
Stambuk, BU
DOI：
10.1073/pnas.82.11.3756
发表时间：
1985-01-01
影响因子：
11.1
作者：
CARLE, GF;OLSON, MV
通讯作者：
OLSON, MV
影响因子：
9.3
作者：
Huggett, Jim F.;Foy, Carole A.;Bustin, Stephen A.
通讯作者：
Bustin, Stephen A.
影响因子：
4.1
作者：
Kim, Dong-Ho;Lee, Young-Chun
通讯作者：
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