From diploids to allopolyploids: The emergence of efficient pairing control genes in plants

摘要: Polyploidy has played a major role in the evolution of higher plants. Precise control chromosome pairing is vital for conferring meiotic regularity, and hence reproductive stability allopolyploids. In this review, we examine whether strong evidence accumulated presence activity genes different allopolyploid species that are entirely bivalent forming display strict disomic inheritance. We show very good been adduced Triticum species, Avena sativa, Festuca arundinacea, Brassica napus, Gossypium hirsutum, G. barbadense, amphidiploids related to diploid Lolium perenne, L. multiflorum, rigidum. More circumstantial obtained polyploids genera Aegilops, Hordeum, Nicotiana, Coffea, which have received far less attention than other species. Although these regulators seem processes operating throughout premeiotic interphase pro...