Self-compatibility in Lolium temulentum L: its genetic control and transfer into L. perenne L. and L. multiflorum Lam
Self-compatibility in Lolium temulentum L: its genetic control and transfer into L. perenne L. and L. multiflorum Lam
复制标题
黑麦草的自交亲和性：其遗传控制和转移到黑麦草和黑麦草中
DOI：
10.1038/hdy.1992.9
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发表时间：
1992
期刊：
影响因子：
3.8
通讯作者：
M. D. Hayward
中科院分区：
文献类型：
--
作者：
D. Thorogood;M. D. Hayward
自交亲和性与L. temulentum与自交不亲和种L. perenne和L. multiflorum，后者被用作轮回亲本。自交亲和性的分离模式由自交结实率和回交世代的离体自花授粉分数决定。L.自交亲和性temulentum以配子体方式由Z基因座或与之紧密连锁的基因座的单基因突变控制。自交亲和性可以通过自交半亲和回交植物以纯合形式固定（即在自交柱头上100%的花粉管生长）。S基因座在L.当与来自L. perenne或L.多花这对自交亲和与自交不亲和的黑麦草属种间关系的研究具有重要的进化意义。
The segregation of self-compatibility from L. temulentum was examined in backcross generations derived from hybrids between this species and the self-incompatible species, L. perenne and L. multiflorum, the latter being used as recurrent parents. Segregation patterns for self-compatibility were determined by percentage self seed set and by in-vitro self-pollination scores in the resulting backcross generations. Self-compatibility in L. temulentum is controlled in a gametophytic manner by a single gene mutation of either the Z locus or a locus tightly linked to it. Self-compatibility can be fixed in the homozygous form (ie 100 per cent pollen-tube growth on selfed stigmas) by selfing half compatible backcross plants. The S locus is still present in L. temulentum and functions when combined with a functional Z locus derived from either L. perenne or L. multiflorum. This has evolutionary significance for the relationship of the self-compatible and-incompatible Lolium species.