培育具有低镉和抗褐斑病特性的水稻（L.）品种“越光”的优良近等基因系。

Breeding of a promising isogenic line of rice ( L.) variety 'Koshihikari' with low cadmium and brown spot () resistance.

作者信息

Mizobuchi Ritsuko, Ohashi Satomi, Matsumoto Kengo, Ota Yuya, Yamakawa Tomohiro, Abe Tadashi, Ishikawa Satoru, Ohmori Shinnosuke, Takeuchi Yoshinobu, Goto Akitoshi, Matsushita Kei, Ikegaya Tomohito, Kon Sayaka, Suzuki Nobuhiro, Tsuiki Chikako, Yamanouchi Utako, Ando Tsuyu, Sato Hiroyuki

机构信息

Institute of Crop Science, National Agriculture and Food Research Organization, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518, Japan.

Mie Prefecture Agricultural Research Institute, 530 Ureshinokawakita, Matsusaka, Mie 515-2316, Japan.

出版信息

Breed Sci. 2024 Dec;74(5):462-467. doi: 10.1270/jsbbs.24027. Epub 2024 Nov 15.

DOI:10.1270/jsbbs.24027

PMID:39897662

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11780335/

Abstract

The -deficient rice ( L.) mutant (), with a low grain cadmium (Cd) content, was registered as 'Koshihikari Kan No. 1' in Japan. Its agronomic traits are almost identical to those of 'Koshihikari' except for its low Cd content and its susceptibility to brown spot (BS) caused by . To restore BS resistance, we introduced the BS resistance quantitative trait locus (QTL) into it. The resulting isogenic line (IL) had higher resistance to BS than Koshihikari Kan No. 1 while retaining low grain Cd, with no significant difference from Koshihikari in grain yield or quality. This IL, which we named 'Kanto IL 31', can be used for breeding varieties with low Cd content and BS resistance.

摘要

镉缺乏水稻（粳稻）突变体（），其籽粒镉（Cd）含量低，在日本被登记为“越光菅一号”。除了镉含量低以及对由引起的褐斑病（BS）敏感外，其农艺性状与“越光”几乎相同。为恢复对褐斑病的抗性，我们将褐斑病抗性数量性状位点（QTL）导入其中。所得的近等基因系（IL）对褐斑病的抗性高于越光菅一号，同时保持低籽粒镉含量，在籽粒产量或品质方面与越光无显著差异。这个我们命名为“关东IL 31”的近等基因系可用于培育低镉含量且抗褐斑病的品种。