IWYP Call 2 - Isolation of genetic variation for flowering morphology for hybrid wheat production.

据预测，杂交小麦可使产量增加3.5%至15%。杂交小麦的生产要求雌性植株由基因不同的父本授粉。然而，由于小麦是自交种，它不具有外源育种所需的正确的花形态。此外，外交所需性状的遗传变异在现代小麦中也存在，这是有争议的。在这项建议中，我们将确定雄性和雌性花形态的遗传变异，这是进行远缘杂交和杂交小麦生产所必需的。这将通过分析野生近缘小麦的关键目标性状，特别强调外源育种物种(在BBSRC WISP/DFW计划中在诺丁汉开发)来实现。将结合遗传标记和分子细胞遗传学技术开发一系列筛选程序。所进行的研究将导致识别控制目标花卉性状的基因/野生相对导入，这些基因将被纳入促进杂交小麦生产的优良品种。

It is predicted that hybrid wheat could lead to yield increases of between 3.5% and 15%. Hybrid wheat production requires that a female plant is pollinated by a genetically different male parent. However, since wheat is an in-breeder it does not have the correct floral morphology required for out-breeding. Furthermore, it is debatable that the genetic variation for the traits required for out-breeding are available in modern day wheat. In this proposal we will identify genetic variation for both male and female floral morphology required for out-breeding and hence hybrid wheat production. This will be achieved by analysis of key target traits in the wild relatives of wheat with particular emphasis on out-breeding species (developed at Nottingham in the BBSRC WISP/DFW programme). A range of screening procedures will be exploited in combination with genetic markers and molecular cytogenetic techniques. The research undertaken will lead to the identification of genes/wild relative introgressions that control target floral traits that will be incorporated into elite varieties that will facilitate hybrid wheat production.