title: Evolution and Molecular Control of Hybrid Incompatibility in Plants.
abstract: Postzygotic reproductive isolation (RI) plays an important role in speciation. According to the stage at which it functions and the symptoms it displays, postzygotic RI can be called hybrid inviability, hybrid weakness or necrosis, hybrid sterility, or hybrid breakdown. In this review, we summarized new findings about hybrid incompatibilities in plants, most of which are from studies on Arabidopsis and rice. Recent progress suggests that hybrid incompatibility is a by-product of co-evolution either with "parasitic" selfish elements in the genome or with invasive microbes in the natural environment. We discuss the environmental influences on the expression of hybrid incompatibility and the possible effects of environment-dependent hybrid incompatibility on sympatric speciation. We also discuss the role of domestication on the evolution of hybrid incompatibilities.
authors: Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University Yangzhou, China.
authors: Chen
authors: C
authors: Chen
authors: China National Rice Research Institute Hangzhou, China.
authors: Zhiguo
authors: Z
authors: E
authors: National Key Laboratory of Plant Molecular Genetics and CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences Shanghai, China.
authors: Hong-Xuan
authors: HX
authors: Lin
keywords: Bateson-Dobzhansky–Muller model; Hybrid incompatibility; Speciation genes; evolutionary force; evolutionary genetics; postzygotic reproductive barriers