The different mechanisms of gametophytic self-incompatibility
The different mechanisms of gametophytic self-incompatibility
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DOI：
10.1098/rstb.2003.1287
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发表时间：
2003-06-29
影响因子：
6.3
通讯作者：
Franklin, FCH
中科院分区：
文献类型：
--
作者：
Franklin-Tong, VE;Franklin, FCH
自交不亲和（SI）涉及对自身或基因相同的花粉的识别和排斥。配子体SI可能是最广泛的SI系统，到目前为止，已经确定了两种完全不同的SI机制，它们似乎是单独进化的。其中一种机制是在茄科、蔷薇科和玄参科中发现的RNase系统。另一个是一个复杂的系统，迄今为止只在罂粟科中发现，它涉及触发信号转导级联，导致花粉管快速抑制和细胞死亡。在这里，我们提出了什么是目前已知的机制参与控制花粉管抑制在这两个系统的概述。
Self-incompatibility (SI) involves the recognition and rejection of self or genetically identical pollen. Gametophytic SI is probably the most widespread of the SI systems and, so far, two completely different SI mechanisms, which appear to have evolved separately, have been identified. One mechanism is the RNase system, which is found in the Solanaceae, Rosaceae and Scrophulariaceae. The other is a complex system, so far found only in the Papaveraceae, which involves the triggering of signal transduction cascade(s) that result in rapid pollen tube inhibition and cell death. Here, we present an overview of what is currently known about the mechanisms involved in controlling pollen tube inhibition in these two systems.