Progress in research and development on hybrid rice: a super-domesticate in China.
Progress in research and development on hybrid rice: a super-domesticate in China.
复制标题
DOI：
10.1093/aob/mcm121
复制
发表时间：
2007-11
期刊：
影响因子：
4.2
通讯作者：
Cao LY
中科院分区：
文献类型：
--
作者：
Cheng SH;Zhuang JY;Fan YY;Du JH;Cao LY
中国在杂交水稻品种选育方面取得了成功，但目前面临着开发具有高产潜力、更好的谷物品质以及对生物和非生物胁迫耐受性的新杂交品种的挑战。本文回顾了中国杂交水稻育种的最重大进展，并介绍了产量性状数量性状基因座（QTL）精细定位的最新研究。通过开发新型雄性不育技术，中国的杂交水稻生产变得更加多样化。亚种间杂交的利用为扩大杂交水稻的遗传多样性做出了额外的贡献，在我国超级稻杂交育种中发挥了重要作用。随着籼粳亲本的开发和应用，具有超高产潜力的杂交水稻新品种已开发出来并正在规模化种植。用于亚种分化的DNA标记已经被鉴定和应用，并且标记辅助选择被用于开发携带抗病基因的恢复系。人们已经研究了高度杂种优势杂种中杂种优势的遗传基础，但这些研究的数据不足以得出合理的结论。在一项使用逐步残留杂合系的 QTL 研究中，解析了两个包含产量性状 QTL 的连锁区间，其中一个被界定为 125 kb 区域。水稻基因组研究的进展为水稻遗传研究和种质资源利用提供了新的思路。分子标记辅助选择是提高育种效率的有力工具，但在将该技术从主基因扩展到 QTL 之前，还有许多工作要做。
China has been successful in breeding hybrid rice strains, but is now facing challenges to develop new hybrids with high-yielding potential, better grain quality, and tolerance to biotic and abiotic stresses. This paper reviews the most significant advances in hybrid rice breeding in China, and presents a recent study on fine-mapping quantitative trait loci (QTLs) for yield traits. By exploiting new types of male sterility, hybrid rice production in China has become more diversified. The use of inter-subspecies crosses has made an additional contribution to broadening the genetic diversity of hybrid rice and played an important role in the breeding of super rice hybrids in China. With the development and application of indica-inclined and japonica-inclined parental lines, new rice hybrids with super high-yielding potential have been developed and are being grown on a large scale. DNA markers for subspecies differentiation have been identified and applied, and marker-assisted selection performed for the development of restorer lines carrying disease resistance genes. The genetic basis of heterosis in highly heterotic hybrids has been studied, but data from these studies are insufficient to draw sound conclusions. In a QTL study using stepwise residual heterozygous lines, two linked intervals harbouring QTLs for yield traits were resolved, one of which was delimited to a 125-kb region. Advances in rice genomic research have shed new light on the genetic study and germplasm utilization in rice. Molecular marker-assisted selection is a powerful tool to increase breeding efficiency, but much work remains to be done before this technique can be extended from major genes to QTLs.
登录
查看更多内容
影响因子：
5.4
作者：
Chen, X;Temnykh, S;McCouch, SR
通讯作者：
McCouch, SR
影响因子：
5.4
作者：
Huang, N;Angeles, ER;Khush, GS
通讯作者：
Khush, GS
影响因子：
3.1
作者：
WANG, ZY;TANKSLEY, SD
通讯作者：
TANKSLEY, SD
影响因子：
5.4
作者：
Wu, JL;Fan, YY;Zhuang, JY
通讯作者：
Zhuang, JY
影响因子：
2.3
作者：
Chen, S;Lin, XH;Zhang, QF
通讯作者：
Zhang, QF