Structural features of a wheat plastome as revealed by complete sequencing of chloroplast DNA

被引:132
作者
Ogihara, Y [1 ]
Isono, K
Kojima, T
Endo, A
Hanaoka, M
Shiina, T
Terachi, T
Utsugi, S
Murata, M
Mori, N
Takumi, S
Ikeo, K
Gojobori, T
Murai, R
Murai, K
Matsuoka, Y
Ohnishi, Y
Tajiri, H
Tsunewaki, K
机构
[1] Yokohama City Univ, Kihara Inst Biol Res, Yokohama, Kanagawa 2440813, Japan
[2] Yokohama City Univ, Grad Sch Integrated Sci, Yokohama, Kanagawa 2440813, Japan
[3] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan
[4] PE Biosyst Japan Ltd, Chiba 2790011, Japan
[5] Kyoto Sangyo Univ, Fac Engn, Dept Biotechnol, Kyoto 6038047, Japan
[6] Okayama Univ, Bioresources Res Inst, Kurashiki, Okayama 7100046, Japan
[7] Kobe Univ, Fac Agr, Lab Plant Genet, Dept Biol & Environm Sci, Kobe, Hyogo 6578501, Japan
[8] Natl Inst Genet, Ctr Informat Biol, Mishima, Shizuoka 4118540, Japan
[9] Fukui Prefectural Univ, Dept Biosci, Fukui 9101195, Japan
关键词
Chinese spring wheat; chloroplast DNA; complete sequence; hypervariable region; structure analysis;
D O I
10.1007/s00438-001-0606-9
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Structural features of the wheat plastome were clarified by comparison of the complete sequence of wheat chloroplast DNA with those of rice and maize chloroplast genomes. The wheat plastome consists or a 134,545-bp circular molecule with 20,703-bp inverted repeats and the same gene content as the rice and maize plastomes. However, some structural divergence was found even in the coding regions of genes. These alterations are due to illegitimate recombination between two short direct repeats and/or replication slippage. Overall comparison of chloroplast DNAs among the three cereals indicated the presence of some hot-spot regions for length mutations. Whereas the region with clustered tRNA genes and that downstream of rbcL showed divergence in a species-specific manner, the deletion patterns of ORFs in the inverted-repeat regions and the borders between the inverted repeats and the small single-copy region support the notion that wheat and rice are related more closely to cacti other than to maize.
引用
收藏
页码:740 / 746
页数:7
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