Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae

破译绿藻叶绿体和线粒体基因组进化的途径

基本信息

  • 批准号:
    2830-2007
  • 负责人:
  • 金额:
    $ 10.56万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Group
  • 财政年份:
    2009
  • 资助国家:
    加拿大
  • 起止时间:
    2009-01-01 至 2010-12-31
  • 项目状态:
    已结题

项目摘要

All eukaryotic cells feature membrane-bound organelles containing DNA, called mitochondria and (in algae and land plants) chloroplasts. By studying the genes encoded in these vital cellular components involved in energy production, researchers have found that in several eukaryotic lineages, including green algae and land plants, the chloroplast (cp) and mitochondrial (mt) genomes exhibit considerable diversity in size, structure, gene content, gene order and intron content. Our group is determining and analyzing the complete sequences of organelle genomes from green algae, which range in size from 20,000 to 350,000 bases. All living green plants (Viridiplantae) are divided into two phyla: the Chlorophyta, comprising the bulk of the green algae, and the Streptophyta, comprising the green algae from the class Charophyceae and all land plants. We have recently shown that the cp genome is evolving much more conservatively in the Streptophyta than in the Chlorophyta and that the cp genome of land plants inherited a myriad of traits from their charophycean green algal ancestors. In contrast, the mt genome sustained radical changes during the evolution of both chlorophytes and streptophytes and it appears that land plant mtDNAs inherited only a few structural characters from charophycean green algae. The aims of the proposed research are two-fold: (1) to understand how streptophyte and chlorophyte organelle genomes diverged over evolutionary time and (2) to resolve the branching order of problematic green algal lineages in the tree of life. Complete cpDNA and mtDNA sequences from representatives of various green algal lineages will be determined, decoded, and compared to their previously sequenced green plant homologs. Using a phylogenic framework inferred from whole organelle genomes, we will be reconstruct scenarios of gene losses, gene rearrangements and intron gains/losses. The information gained will help us to decipher the forces that shape organelle genomes. This information is also crucial for understanding how green algae evolved and gave rise to land plants. We expect that the proposed studies will represent a major Canadian contribution in the area of organelle genomics.
所有的真核细胞都具有包含DNA的膜结合细胞器,称为线粒体和(在藻类和陆地植物中)叶绿体。通过研究这些参与能量生产的重要细胞成分中编码的基因,研究人员发现,在几种真核生物谱系中,包括绿色藻类和陆地植物,叶绿体(cp)和线粒体(mt)基因组在大小、结构、基因内容、基因顺序和内含子内容方面表现出相当大的多样性。我们的团队正在确定和分析绿色藻类细胞器基因组的完整序列,其大小范围从20,000到350,000个碱基。所有活的绿色植物(Viridiplantae)分为两个门:绿藻门,包括大部分绿色藻类,和链藻门,包括轮藻纲的绿色藻类和所有陆地植物。我们最近表明,cp基因组在链藻门比在绿藻门进化得保守得多,陆地植物的cp基因组从轮藻科绿色藻类祖先那里继承了无数的性状。与此相反,线粒体基因组持续激进的变化,在进化过程中的绿藻和链藻,它似乎陆地植物mtDNA继承了只有几个结构特征轮藻绿色藻类。拟议的研究的目的是双重的:(1)了解链藻和绿藻细胞器基因组如何在进化过程中分化,(2)解决有问题的绿色藻类谱系在生命之树中的分支顺序。完整的cpDNA和mtDNA序列的各种绿色藻类谱系的代表将被确定,解码,并比较其先前测序的绿色植物同源物。使用从整个细胞器基因组推断的基因突变框架,我们将重建基因丢失、基因重排和内含子获得/丢失的场景。获得的信息将帮助我们破译塑造细胞器基因组的力量。这些信息对于理解绿色藻类如何进化并产生陆地植物也至关重要。我们预计,拟议的研究将代表加拿大在细胞器基因组学领域的重大贡献。

项目成果

期刊论文数量(0)
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Turmel, Monique其他文献

Chloroplast DNA sequence of the green alga Oedogonium cardiacum (Chlorophyceae): unique genome architecture, derived characters shared with the Chaetophorales and novel genes acquired through horizontal transfer.
  • DOI:
    10.1186/1471-2164-9-290
  • 发表时间:
    2008-06-16
  • 期刊:
  • 影响因子:
    4.4
  • 作者:
    Brouard, Jean-Simon;Otis, Christian;Lemieux, Claude;Turmel, Monique
  • 通讯作者:
    Turmel, Monique
Distinctive architecture of the chloroplast genome in the chlorophycean green alga Stigeoclonium helveticum
  • DOI:
    10.1007/s00438-006-0156-2
  • 发表时间:
    2006-11-01
  • 期刊:
  • 影响因子:
    3.1
  • 作者:
    Belanger, Anne-Sophie;Brouard, Jean-Simon;Turmel, Monique
  • 通讯作者:
    Turmel, Monique
Complete mitogenomes of the marine picoplanktonic green algae Prasinoderma sp. MBIC 10622 and Prasinococcus capsulatus CCMP 1194 (Palmophyllophyceae).
  • DOI:
    10.1080/23802359.2019.1698370
  • 发表时间:
    2019-12-11
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Turmel, Monique;Otis, Christian;Lemieux, Claude
  • 通讯作者:
    Lemieux, Claude
Deep division in the Chlorophyceae (Chlorophyta) revealed by chloroplast phylogenomic analyses
  • DOI:
    10.1111/j.1529-8817.2008.00510.x
  • 发表时间:
    2008-06-01
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Turmel, Monique;Brouard, Jean-Simon;Lemieux, Claude
  • 通讯作者:
    Lemieux, Claude
The chloroplast genome sequence of Chara vulgaris sheds new light into the closest green algal relatives of land plants
  • DOI:
    10.1093/molbev/msk018
  • 发表时间:
    2006-06-01
  • 期刊:
  • 影响因子:
    10.7
  • 作者:
    Turmel, Monique;Otis, Christian;Lemieux, Claude
  • 通讯作者:
    Lemieux, Claude

Turmel, Monique的其他文献

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{{ truncateString('Turmel, Monique', 18)}}的其他基金

Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2012
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2011
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2010
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    349777-2007
  • 财政年份:
    2009
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2008
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    349777-2007
  • 财政年份:
    2008
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    349777-2007
  • 财政年份:
    2007
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2007
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
A genomics approach for identifying the green algal ancestors of land plants
识别陆地植物绿藻祖先的基因组学方法
  • 批准号:
    250901-2002
  • 财政年份:
    2004
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Genomics Projects
A genomics approach for identifying the green algal ancestors of land plants
识别陆地植物绿藻祖先的基因组学方法
  • 批准号:
    250901-2002
  • 财政年份:
    2003
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Genomics Projects

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The development of tools and resources for the identification of inhibitors of pigment biosynthetic pathways in the chloroplast.
开发用于识别叶绿体中色素生物合成途径抑制剂的工具和资源。
  • 批准号:
    2577846
  • 财政年份:
    2021
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Analyses of the membrane lipid signaling pathways that regulate chloroplast division
调节叶绿体分裂的膜脂信号通路分析
  • 批准号:
    26840089
  • 财政年份:
    2014
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剖析控制拟南芥叶绿体降解和叶片衰老的蛋白水解途径
  • 批准号:
    DE120102913
  • 财政年份:
    2012
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Early Career Researcher Award
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2012
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2011
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
Mechanisms of chloroplast degradation by two-different autophagic pathways in senescent leaves
衰老叶片两种不同自噬途径降解叶绿体的机制
  • 批准号:
    22780054
  • 财政年份:
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Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2010
  • 资助金额:
    $ 10.56万
  • 项目类别:
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Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    349777-2007
  • 财政年份:
    2009
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
Deciphering pathways of chloroplast and mitochondrial genome evolution in green algae
破译绿藻叶绿体和线粒体基因组进化的途径
  • 批准号:
    2830-2007
  • 财政年份:
    2008
  • 资助金额:
    $ 10.56万
  • 项目类别:
    Discovery Grants Program - Group
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TOC 复合物的表征,定义了拟南芥中不同客户特异性叶绿体蛋白输入途径
  • 批准号:
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  • 财政年份:
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  • 项目类别:
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