文献类型: 外文期刊
作者: Wei, LR;Xu, JC;Li, XB;Qian, Q;Zhu, LH
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关键词: dominant dwarf gene;genetic analysis;genetic mapping;rice
期刊名称: JOURNAL OF INTEGRATIVE PLANT BIOLOGY
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收录情况: SCI
摘要: The dwarfing gene D-53 is one of a few dominant genes for dwarfing in rice (Oryza sativa L.). In the present study, our genetic analysis confirmed that mutant characteristics including dwarfing, profuse tillering, thin stems and small panicles are allcontrolled by the dominant D-53 gene. We measured the length of each internode of KL908, a D-53-carrying line, and classified the dwarfism of KL908 into the dn-type. In addition, we measured elongation of the second sheath and alpha-amylase activity inthe endosperm, and we characterized KL908 as a dwarf mutant that was neither gibberellic acid-deficient nor gibberellic acid-insensitive. Using a large F_2 population obtained by crossing KL908 with a wild-type variety, NJ6, the D-53 gene was mapped to the terminal region of the short arm of chromosome 11, with one simple sequence repeat marker, Ds3, co-segregating, and the other, K81114, located 0.6 cM away.
分类号: Q94
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