【摘 要】
：
Rice grain-filling, a process controlling the weight of each grain after pollination, has been a bottleneck in rice breeding.Based on screening rice genetic resources and mutants, we identified the ri
【机 构】
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Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Acad
【出 处】
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第八届海峡两岸三地植物分子生物学与生物技术学术研讨会
论文部分内容阅读
Rice grain-filling, a process controlling the weight of each grain after pollination, has been a bottleneck in rice breeding.Based on screening rice genetic resources and mutants, we identified the rice gene GIF1 as a key regulator of the entire grain-filling process, which encodes a cell-wall invertase required for carbon partitioning during early grain-filling.The GIF1 expression pattern indicates that sucrose is unloaded by GIF 1 in the ovular and stylar vascular tissues for starch synthesis in the endosperm during grain-filling.We provided genetic evidence that GIF1 was a target of rice domestication selection.
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