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Differentially expressed genes under cold acclimation in Physcomitrella patens

文献类型： 外文期刊

作者： Sun, Ming-Ming 1 ; Li, Lin-Hui 2 ; Xie, Hua 2 ; Ma, Rong-Cai 2 ; He, Yi-Kun 3 ;

作者机构： 1.Capital Normal Univ, Coll Life Sci, Beijing 100037, Peoples R China

2.Capital Normal Univ, Coll Life Sci, Beijing 100037, Peoples R China; Capital Normal Univ, Coll Elementary Educ, Beijing 100080, Peoples R China; China W Normal Univ, Dept Biol, Nanchong 637002, Peoples R China; Beijing AgroBiotechnol Res Ctr, Beijing 100089, Peoples R China

3.Capital Normal Univ, Coll Life Sci, Beijing 100037, Peoples R China; Capital Normal Univ, Coll Elementary Educ, Beijing 100080,

关键词： cDNA-amplified fragment length polymorphism (CDNA-AFLP);cold acclimation;gene expression profile;Physcomitrella patens (Hedw.);real-time RT-PCR;suppression subtractive hybridization (SSH)

期刊名称：JOURNAL OF BIOCHEMISTRY AND MOLECULAR BIOLOGY （ 影响因子：2.021； 五年影响因子：2.1 ）

ISSN： 1225-8687

年卷期： 2007 年 40 卷 6 期

页码：

收录情况： SCI

摘要： Cold acclimation improves freezing tolerance in plants. In higher plants, many advances have been made toward identifying the signaling and regulatory pathways that direct the low-temperature stress response; however, similar insights have not yet been gained for simple non-vascular plants, such as bryophytes. To elucidate the pathways that regulate cold acclimation in bryophytes, we used two PCR-based differential screening techniques, cDNA amplified fragment length polymorphism (cDNA-AFLP) and suppression subtractive hybridization (SSH), to isolate 510 ESTs that are differentially expressed during cold acclimation in Physcomitrella patens. We used real-time RT-PCR to further analyze expression of 29 of these transcripts during cold acclimation. Our results show that cold acclimation in the bryophyte Physcomitrella patens is not only largely similar to higher plants but also displays distinct differences, suggests significant alteration during the evolution of land plants.

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