著者

Kazufumi Nagata Yasunori Nonoue Kazuki Matsubara Ritsuko Mizobuchi Nozomi Ono Taeko Shibaya Kaworu Ebana Eri Ogiso-Tanaka Takanari Tanabata Kazuhiko Sugimoto Fumio Taguchi-Shiobara Jun-ichi Yonemaru Yusaku Uga Atsunori Fukuda Tadamasa Ueda Shin-ichi Yamamoto Utako Yamanouchi Toshiyuki Takai Takashi Ikka Katsuhiko Kondo Tomoki Hoshino Eiji Yamamoto Shunsuke Adachi Jian Sun Noriyuki Kuya Yuka Kitomi Ken Iijima Hideki Nagasaki Ayahiko Shomura Tatsumi Mizubayashi Noriyuki Kitazawa Kiyosumi Hori Tsuyu Ando Toshio Yamamoto Shuichi Fukuoka Masahiro Yano

出版者

Japanese Society of Breeding

雑誌

Breeding Science (ISSN:13447610)

巻号頁・発行日

vol.73, no.3, pp.332-342, 2023 (Released:2023-07-27)

参考文献数

64

被引用文献数

1

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Many agronomic traits that are important in rice breeding are controlled by multiple genes. The extensive time and effort devoted so far to identifying and selecting such genes are still not enough to target multiple agronomic traits in practical breeding in Japan because of a lack of suitable plant materials in which to efficiently detect and validate beneficial alleles from diverse genetic resources. To facilitate the comprehensive analysis of genetic variation in agronomic traits among Asian cultivated rice, we developed 12 sets of chromosome segment substitution lines (CSSLs) with the japonica background, 11 of them in the same genetic background, using donors representing the genetic diversity of Asian cultivated rice. Using these materials, we overviewed the chromosomal locations of 1079 putative QTLs for seven agronomic traits and their allelic distribution in Asian cultivated rice through multiple linear regression analysis. The CSSLs will allow the effects of putative QTLs in the highly homogeneous japonica background to be validated.

著者

Noriyuki Kuya Jian Sun Ken Iijima Ramaiah Venuprasad Toshio Yamamoto

出版者

日本育種学会

雑誌

Breeding Science (ISSN:13447610)

巻号頁・発行日

pp.19003, (Released:2019-10-04)

被引用文献数

10

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Direct seeding saves time and labour in the cultivation of rice. However, seedling establishment is often unstable, and yields are lower than in transplanting. Anaerobic germination (AG) is a key trait for improvement of direct seeding of rice. We established a simple and reliable method of evaluating AG in rice breeding. We germinated seeds in distilled water or deoxygenated water and measured coleoptile length several days later; compared the results of each method with survival rate in flooded soil; and used the anoxic water method for QTL analysis and for testing cultivars. Coleoptile elongation in anoxic water and survival rate in flooded soil were significantly correlated (r = 0.879, P < 0.01). A significant QTL, likely to be a major gene (AG1), was found in chromosome segment substitution lines and in a backcrossed F2 population derived from tolerant and sensitive lines. Diverse rice genetic resources were classified into tolerant or sensitive accession groups reflecting their ecotypes. Our study revealed that anoxic water evaluation method saves space and time in a stable environment compared with flooded soil evaluation. It is applicable to QTL analysis and isolation of genes underlying anaerobic germination.

著者

Ling Qin Qin-Ping Wei Wen-Huai Kang Qiang Zhang Jian Sun Song-Zhong Liu

出版者

Japanese Society for Food Science and Technology

雑誌

Food Science and Technology Research (ISSN:13446606)

巻号頁・発行日

vol.23, no.1, pp.79-89, 2017 (Released:2017-03-25)

参考文献数

27

被引用文献数

16

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The characteristics of the volatiles from 43 ‘Fuji’ apples representing 14 different apple production regions in China were investigated using headspace-solid phase micro-extraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS). The results obtained from this experiment showed that sixty-four volatile compounds were identified in ‘Fuji’ apples collected from 43 counties in China. The major volatile compounds were identified as 2-methyl butyl acetate and hexyl acetate. The composition of volatiles and their contents in ‘Fuji’ apples varied in different regions. All of the ‘Fuji’ apple samples could be classified into the following groups using a principal component analysis of the volatiles: (1) apples with high concentrations of hexyl acetate and (Z)-3-hexenyl acetate, which were collected in Shandong (Qixia, Wendeng, Penglai, Zhaoyuan, Jiaonan and Yishui), Shanxi (Wanrong, Ruicheng and Linyi), and Gansu Ninglang, (2) apples with high contents of 2-methyl butyl acetate and 1-hexanol, which mainly came from North Shaanxi, Henan Sanmenxia, Liaoning Wafangdian and Liaoning Suizhong, (3) apples with high contents of hexyl butanoate, butyl acetate and hexyl 2-methyl butyrate, which were mainly collected in Gansu (excluding Ninglang), and (4) apples without any characteristic volatile composition. In addition, it was found that mean annual temperature was significant correlated with 2-methyl butyl acetate,butyl 2-methyl butanoate, hexyl acetate, and (E)-2-hexenyl acetate. Longitude was significantly correlated with butyl acetate, (Z)-3-hexenyl acetate, and ethyl hexanoate.