Development of new sets of international standard differential varieties for blast resistance in rice (Oryza sativa L.)
Development of new sets of international standard differential varieties for blast resistance in rice (Oryza sativa L.)
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DOI：
10.6090/jarq.41.31
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发表时间：
2007-01-01
影响因子：
0.4
通讯作者：
Fukuta, Yoshimichi
中科院分区：
文献类型：
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作者：
Kobayashi, Nobuya;Telebanco-Yanoria, Mary Jeanie;Fukuta, Yoshimichi
IRRI-日本合作研究项目一直在开发新的抗稻瘟病（Pyricularia grisea Sacc.）水稻（Oryza sativa L.）第一个由24种抗病基因的单基因系组成的国际标准鉴别品种集（Pia，Pib，Pii，Pik，Pik-h，Pik-m，Pik-p，Pik-s，Pish，Pit，Pita，Pita-2，Piz，Piz-5（= Pi2），Piz-t，Pi1，Pi3，Pi5（t），Pi7，Pi9，Pill（t），Pi12（t），Pi19（t），和Pi 20）发布，并已在各个国家广泛使用。此外，该项目还开发了具有三种遗传背景的抗稻瘟病近等基因系（NILs），即粳稻型品种丽江新团黑谷（LTH）、籼稻型品种CO 39和新开发的“通用感病”系US-2，后者是由籼稻型和粳稻型感病品种杂交获得的。利用具有LTH遗传背景的单基因系，通过轮回回交获得了Pia、Pib、Pik、Pik-h、Pik-s、Pita、Pita-2、Piz-5（= Pi 2）、Piz-t、Pi 1、Pi 3、Pi 5（t）、Pi 7、Pi 9等14种抗病基因的23个株系。以C 039为遗传背景，获得了含有Pib、Pik、Pik-h、Pik-rn、Pik-p、Pik-s、Pish、Pita、Pita-2、Piz-5（= Pi 2）、Piz-t、Pi 1、Pi 5（t）、Pi 7等14种抗病基因的20个株系。此外，一种普遍感病的水稻品系US-2也被用于开发作为下一代差异品种的近等基因系，该品系在遗传背景中不具有任何稻瘟病抗性基因，并且可以在热带和温带条件下容易地栽培。这些品系可作为抗稻瘟病育种的基因来源，也可作为稻瘟病研究的国际标准鉴别品种。
The IRRI-Japan Collaborative Research Project has been developing new sets of differential varieties for resistance to blast disease (Pyricularia grisea Sacc.) in rice (Oryza sativa L.). The first international standard differential variety set composed of monogenic lines for 24 kinds of resistance genes (Pia, Pib, Pii, Pik, Pik-h, Pik-m, Pik-p, Pik-s, Pish, Pit, Pita, Pita-2, Piz, Piz-5 (= Pi2), Piz-t, Pi1, Pi3, Pi5(t), Pi7, Pi9, Pill(t), Pi12(t), Pi19(t), and Pi20) was released and has been widely used in various countries. Furthermore, the project has been developing near-isogenic lines (NILs) for blast resistance with three kinds of genetic backgrounds, a Japonica-type variety Lijiangxintuanheigu (LTH), an Indica-type variety CO39, and a newly developed 'universal susceptible' line US-2 which was derived from a cross between Indica and Japonica-type susceptible varieties. A total of 23 lines for 14 kinds of resistance genes, Pia, Pib, Pik, Pik-h, Pik-s, Pita, Pita-2, Piz-5 (= Pi2), Piz-t, Pi1, Pi3, Pi5(t), Pi7, and Pi9, have been developed by the recurrent backcross method using the monogenic lines with the LTH genetic background. Twenty lines for 14 kinds of resistance genes, Pib, Pik, Pik-h, Pik-rn, Pik-p, Pik-s, Pish, Pita, Pita-2, Piz-5 (= Pi2), Piz-t, Pi1, Pi5(t), and Pi7 have been developed with the C039 genetic background. Moreover, a universal susceptible rice line, US-2, which has not been known to have any blast resistance genes in the genetic background, and can be cultivated easily under both tropical and temperate conditions, is also being used for the development of NILs as the next generation of differential varieties. These lines are offered as gene sources for breeding of blast resistance and as sets of international standard differential varieties used for the study of blast disease.