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

IF 2 4区农林科学 Q2 AGRONOMY

Breeding Science Pub Date : 2024-12-01 Epub Date: 2024-11-15 DOI:10.1270/jsbbs.24027

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

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引用次数: 0

Abstract

The OsNRAMP5-deficient rice (Oryza sativa L.) mutant (osnramp5-2), 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 Bipolaris oryzae. To restore BS resistance, we introduced the BS resistance quantitative trait locus (QTL) bsr1 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.

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来源期刊

Breeding Science 农林科学-农艺学

CiteScore

4.90

自引率

4.20%

发文量

审稿时长

1.5 months

期刊介绍： Breeding Science is published by the Japanese Society of Breeding. Breeding Science publishes research papers, notes and reviews related to breeding. Research Papers are standard original articles. Notes report new cultivars, breeding lines, germplasms, genetic stocks, mapping populations, database, software, and techniques significant and useful for breeding. Reviews summarize recent and historical events related breeding. Manuscripts should be submitted by corresponding author. Corresponding author must have obtained permission from all authors prior to submission. Correspondence, proofs, and charges of excess page and color figures should be handled by the corresponding author.