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Population structure of O. glaberrima Steud and its implications for breeding drought tolerance in cultivated rice

机译:O.Glaberrima Steud的人口结构及其对栽培水稻育种耐旱性的影响

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African rice cultivars are adapted to widely different environments, including deep water, rainfed lowland and upland ecosystems (Porteres, 1970). Today, both O. glaberrima and O. saliva are commonly grown in mixtures by farmers in upland and rainfedlowland environments, both of which are prone to drought. O. glaberrima has been cultivated in drought-prone environments in West Africa for more than 3,500 years and it is of interest to understand the population structure and evolution of this native African species. O. saliva was introduced from Asia to Africa by Arab traders and Portuguese explorers 300-500 years ago. We were interested in assessing the relative importance of introgression, admixture, geography and ecological specialization in shaping the pattern of genetic variation within O. glaberrima.
机译:非洲水稻品种适应广泛不同的环境,包括深水,雨量低地和高地生态系统(Porteres,1970)。如今,O.Glaberrima和O.唾液均在普通和Rainfedlowland环境中的农民和雨水环境中的混合物中成长,两者都易于干旱。 O.Glaberrima已在西非的干旱易发的环境中培养超过3500年,了解本土非洲物种的人口结构和演变感兴趣。奥地利唾液由阿拉伯交易员和300万年前葡萄牙探险家从亚洲到非洲。我们有兴趣评估迟滞,外加剂,地理学和生态专业化在塑造O.Glaberrima内的遗传变异模式方面的相对重要性。

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