Shared characteristics underpinning C4 leaf maturation derived from analysis of multiple C3 and C4 species of Flaveria.
Shared characteristics underpinning C4 leaf maturation derived from analysis of multiple C3 and C4 species of Flaveria.
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DOI：
10.1093/jxb/erw488
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发表时间：
2017-01
影响因子：
6.9
通讯作者：
Hibberd JM
中科院分区：
文献类型：
--
作者：
Kümpers BM;Burgess SJ;Reyna-Llorens I;Smith-Unna R;Boursnell C;Hibberd JM
We identify transcription factors that show conserved patterns of expression in multiple C4 species, both within the Flaveria genus and also in more distantly related C4 plants. Most terrestrial plants use C3 photosynthesis to fix carbon. In multiple plant lineages a modified system known as C4 photosynthesis has evolved. To better understand the molecular patterns associated with induction of C4 photosynthesis, the genus Flaveria that contains C3 and C4 species was used. A base to tip maturation gradient of leaf anatomy was defined, and RNA sequencing was undertaken along this gradient for two C3 and two C4Flaveria species. Key C4 traits including vein density, mesophyll and bundle sheath cross-sectional area, chloroplast ultrastructure, and abundance of transcripts encoding proteins of C4 photosynthesis were quantified. Candidate genes underlying each of these C4 characteristics were identified. Principal components analysis indicated that leaf maturation and the photosynthetic pathway were responsible for the greatest amount of variation in transcript abundance. Photosynthesis genes were over-represented for a prolonged period in the C4 species. Through comparison with publicly available data sets, we identify a small number of transcriptional regulators that have been up-regulated in diverse C4 species. The analysis identifies similar patterns of expression in independent C4 lineages and so indicates that the complex C4 pathway is associated with parallel as well as convergent evolution.
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影响因子：
6.9
作者：
Huang P;Studer AJ;Schnable JC;Kellogg EA;Brutnell TP
通讯作者：
Brutnell TP
影响因子：
4.5
作者：
Aubry S;Kelly S;Kümpers BM;Smith-Unna RD;Hibberd JM
通讯作者：
Hibberd JM
DOI：
10.1073/pnas.1515741113
发表时间：
2016-02-23
影响因子：
11.1
作者：
Larkin, Robert M.;Stefano, Giovanni;Osteryoung, Katherine W.
通讯作者：
Osteryoung, Katherine W.
影响因子：
7.4
作者：
Drincovich, MF;Casati, P;Ku, MSB
通讯作者：
Ku, MSB
影响因子：
7.7
作者：
Mallmann J;Heckmann D;Bräutigam A;Lercher MJ;Weber AP;Westhoff P;Gowik U
通讯作者：
Gowik U