刘登才
植物远缘杂交和异源多倍化及其在小麦遗传育种中的应用研究
个性化签名
- 姓名:刘登才
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
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学科领域:
海洋化学
- 研究兴趣:植物远缘杂交和异源多倍化及其在小麦遗传育种中的应用研究
刘登才,研究员,博士导师。1995.9-1998.7, 重庆市石柱中学高中毕业;1998.9-1992.7, 四川农业大学农学学习,获学士学位;1992.9-1998.7, 四川农业大学作物遗传育种专业研究生学习,分别获硕士、博士学位; 2002年10月-2003年9月,在美国南塔科他州立大学生物/微生物系访问进修1年。1995-,在四川农业大学小麦研究所工作。2009-,中国科学院西北高原生物研究所百人计划研究员。
曾获国家自然科学奖二等奖1项、四川省科技进步一等奖3项、三等奖6项;已在SCI收录刊物上发表SCI研究论文50多篇,获得国家发明专利1项,主研选育的6个小麦新品种已在生产上推广应用,并取得显著的社会经济效益。指导的1篇博士学位论文于2009年度获得全国优秀博士学位论文提名论文。入选“新世纪百千万人才工程国家级人选”,中国科学院“百人计划”,享受国务院政府特殊津贴,入选教育部新世纪优秀人才计划,入选四川省学术与技术带头人,四川省有突出贡献的优秀专家。
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刘登才
Genome 54: 959–964 (2011),-0001,():
-1年11月30日
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刘登才
PLoS ONE 6(8): e23511. doi:10.1371/journal.pone.0023511,-0001,():
-1年11月30日
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刘登才
Genetic map of Triticum turgidum based on a hexaploid wheat population without geneticrecombination for D genome,-0001,():
-1年11月30日
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【期刊论文】Microsatellite Mutation Rate during Allohexaploidization of Newly Resynthesized Wheat
刘登才
Int. J. Mol. Sci. 2012, 13, 12533-12543,-0001,():
-1年11月30日
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刘登才
,-0001,():
-1年11月30日
Highly fertile F hybrids were made between Triticum turgidum L. ssp. turgidum (2n = 28, AABB) and Aegilops tauschii Coss. (2n = 14, DD) without embryo rescue and hormone treatment. The F1 plants had an average seed set of 25%. Approximately 96% of the F2 seeds were able to germinate normally and about 67% of the F2 plants were spontaneous amphidiploid (2n = 42,AABBDD). Cytological analysis of male gametogenesis ofthe F1 plants showed that meiotic restitution is responsible for the high fertility. A mitosis-like meiosis led to meiotic restitution at either of the two meiotic divisions resulting in unreduced gametes. Test crosses of the T. t. turgidum–Ae. tauschii amphidiploid with Ae.variabilis and rye suggested that the mitosis-like meiosis is controlled by one or more nuclear genes that continue to function in derived lines. This discovery indicates a potential application of such genes in producing double haploids.
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【期刊论文】Comparison of Newly Synthetic Hexaploid Wheat with Its Donors on SSR Products
刘登才
,-0001,():
-1年11月30日
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【期刊论文】在六倍体小麦的异源多倍化早期微卫星侧翼序列迅速发生了改变
刘登才, 张连全, 颜泽洪, 兰秀锦, 郑有良, 周永红
中国科学C辑:生命科学,2004,34(2):121~128,-0001,():
-1年11月30日
在异源多倍体形成的早期,DNA序列和基因的表达迅速发生了改变。以异源六倍体小麦为例,比较了四倍体小麦与节节麦合成六倍体小麦前后,位于普通小麦D染色体组不同染色体臂上的特异性引物揭示的微卫星位点变化特点。结果表明,从四倍体小麦与节节麦杂交,将A,B与D染色体组结合在一起并加倍得到AABBDD的六倍体小麦这一“剧烈事件”中:(ⅰ)微卫星的侧翼序列发生了变化,导致出现了供体物种没有的新带纹或供体物种的带纹消失,其中,供体物种的带纹消失是主要的。(ⅱ)供体物种的带纹消失不是随机的,而是四倍体小麦消失频率远高于节节麦的频率,即发生在A,B染色体组的消失频率比发生在D染色体组的频率高得多。(ⅲ)微卫星侧翼序列的变化在多倍化的早期(F1代或S1代)就开始发生。由此看来,微卫星两边的侧翼区域在多倍化过程中很活跃,是容易发生变化的区域。微卫星的生物学功能可能与多倍体进化过程有关,微卫星两边的侧翼区域在多倍化过程的早期迅速发生有方向性的改变可能有利于新形成异源多倍体的迅速进化,从而使不同染色体组在遗传上迅速达到协调。
人工合成六倍体小麦, 基因组进化, 微卫星, 异源多倍体化SSR
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刘登才, ZHANG Lianquan, LIU Dengcai, YAN Zehong, LAN Xiujin, ZHENG Youliang & ZHOU Yonghong
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-1年11月30日
It was suggested that the rapid changes of DNA sequence and gene expression oc-curred at the early stages of allopolyploid formation. In this study, we revealed the microsatellite (SSR) differences between newly formed allopolyploids and their donor parents by using 21 primer sets specific for D genome of wheat. It was indicated that rapid changes had occurred in the "shock" process of the allopolyploid formation between tetraploid wheat and Aegilops tauschii. The changes of SSR flanking sequence resulted in appearance of novel bands or disappearance of parental bands. The disappearance of the parental bands showed much higher frequencies in comparison with that of appearance of novel bands. Disappearance of the parental bands was not random. The frequency of disappearance in tetraploid wheat was much higher than in Ae. tauschii, i.e. the disappearance frequency in AABB genome was much higher than in D genome. Changes of SSR flanking sequence occurred at the early stage of F1 hybrid or just after chro-mosome doubling. From the above results, it can be inferred that SSR flanking sequence region was very active and was amenable to change in the process of polyploidization. This suggested that SSR flanking sequence probably had special biological function at the early stage of ploy-ploidization. The rapid and directional changes at the early stage of polyploidization might con-tribute to the rapid evolution of the newly formed allopolyploid and allow the divergent genomes to act in harmony.
synthesized hexaploid wheat,, genome evolution,, microsatellite,, allopolyploidization,, SSR.,
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刘登才, Lan Xiu-Jin, Liu Deng-Cai & Wang Zhi-Rong
Euphytica 95: 321-323, 1997.,-0001,():
-1年11月30日
An artificial amphiploid 'RSP' (2n=42, AABBDD) between tetraploid landrace Ailanmai (Triticum turgidum L., 2=28, AABB) and Aegilops tauschii (DD, 2n=14) expressed high tolerance to preharvest sprouting which derived from Aegilops tauschii. To determine the inheritance of sprouting tolerance in 'RSP', it was crossed with six cultivars which vary in susceptibility to preharvest sprouting. Preharvest sprouting tolerance was assessed on F2 plants using germination towels. Preharvest sprouting tolerance was inherited as a recessive trait which was controlled by one gene.
inheritance,, amphiploid,, preharvest sprouting,, Aegilops tauschii
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