The genome sequence and structure of rice chromosome 1

Takuji Sasaki*, Takashi Matsumoto, Kimiko Yamamoto, Katsumi Sakata, Tomoya Baba, Yuichi Katayose, Jianzhong Wu, Yoshihito Niimura, Zhukuan Cheng, Yoshiaki Nagamura, Baltazar A. Antonio, Hiroyuki Kanamori, Satomi Hosokawa, Masatoshi Masukawa, Koji Arikawa, Yoshino Chiden, Mika Hayashi, Masako Okamoto, Tsuyu Ando, Hiroyoshi AokiKohei Arita, Masao Hamada, Chizuko Harada, Saori Hijishita, Mikiko Honda, Yoko Ichikawa, Atsuko Idonuma, Masumi Iijlma, Michiko Ikeda, Maiko Ikeno, Sachle Ito, Tomoko Ito, Yuichi Ito, Yukiyo Ito, Aki Iwabuchi, Kozue Kamiya, Wataru Karasawa, Satoshi Katagiri, Ari Kikuta, Noriko Kobayashi, Izumi Kono, Kayo Machita, Tomoko Maehara, Hiroshi Mizuno, Tatsumi Mizubayashi, Yoshiyuki Mukai, Hideki Nagasaki, Marina Nakashima, Yuko Nakama, Yumi Nakamichi, Mari Nakamura, Nobukazu Namiki, Manami Negishi, Isamu Ohta, Nozomi Ono, Shoko Saji, Kumiko Sakai, Michie Shibata, Takanori Shimokawa, Ayahiko Shomura, Jianyu Song, Yuka Takazaki, Kimihiro Terasawa, Kumiko Tsuji, Kazunori Waki, Harumi Yamagata, Hiroko Yamane, Shoji Yoshiki, Rie Yoshihara, Kazuko Yukawa, Huisun Zhong, Hisakazu Iwama, Toshinori Endo, Hidetaka Ito, Jang Ho Hahn, Ho Il Kim, Moo Young Eun, Masahiro Yano, Jiming Jiang, Takashi Gojobori

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

444 Scopus citations

Abstract

The rice species Oryza sativa is considered to be a model plant because of its small genome size, extensive genetic map, relative ease of transformation and synteny with other cereal crops1-4. Here we report the essentially complete sequence of chromosome 1, the longest chromosome in the rice genome. We summarize characteristics of the chromosome structure and the biological insight gained from the sequence. The analysis of 43.3 megabases (Mb) of non-overlapping sequence reveals 6,756 protein coding genes, of which 3,161 show homology to proteins of Arabidopsis thaliana, another model plant. About 30% (2,073) of the genes have been functionally categorized. Rice chromosome 1 is (G + C)-rich, especially in its coding regions, and is characterized by several gene families that are dispersed or arranged in tandem repeats. Comparison with a draft sequences5 indicates the importance of a high-quality finished sequence.

Original languageEnglish (US)
Pages (from-to)312-316
Number of pages5
JournalNature
Volume420
Issue number6913
DOIs
StatePublished - Nov 21 2002

ASJC Scopus subject areas

  • General

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