Molecular diversity and phylogeny in geographical collection of chickpea (Cicer sp.) accessions.

摘要: Chickpea (Cicer arietinum L.) is the third most important pulse crop in world and India largest producer of this crop. Nevertheless, its yield low (0.7 tone per hectare (t/ha)) as compared to Australia, Egypt, Israel Italy (1 t/ha) (FAOSTAT 2008, http://faostat.fao.org/). There has been a significant change scenario chickpea cultivation during past three decades. The expansion irrigated agriculture northern led displacement with wheat large area. As result, area under reduced from 3.2 million ha 1.0 northwestern (Punjab, Haryana Uttar Pradesh), while it increased 2.6 4.3 central southern (Madhya Pradesh, Maharashtra, Andhra Pradesh Karnataka) 1985 1990. Because relatively warm environments India, challenged by Fusarium wilt, major reducing disease, due cooler environments, exposed severe foliar disease Ascochyta blight. narrow genetic base among cultivated accessions limiting improvement through breeding efforts. Understanding extent natural variation wild at molecular level essential develop prebreeding strategies for chickpea. Until recently, intraspecific inter-specific polymorphism detected markers scarcity codominant DNA-based were serious constraints that hindered preparation dense maps or tagging traits However, recent studies using STMS reveal fairly high levels