The Gynandropsis gynandra genome provides insights into whole-genome duplications and the evolution of C4 photosynthesis in Cleomaceae.
The Gynandropsis gynandra genome provides insights into whole-genome duplications and the evolution of C4 photosynthesis in Cleomaceae.
复制标题
DOI：
10.1093/plcell/koad018
复制
发表时间：
2023-04-20
期刊：
影响因子：
11.6
通讯作者：
Schranz, M. Eric
中科院分区：
文献类型：
--
作者：
Hoang, Nam, V;Sogbohossou, E. O. Deedi;Xiong, Wei;Simpson, Conor J. C.;Singh, Pallavi;Walden, Nora;van den Bergh, Erik;Becker, Frank F. M.;Li, Zheng;Zhu, Xin-Guang;Brautigam, Andrea;Weber, Andreas P. M.;van Haarst, Jan C.;Schijlen, Elio G. W. M.;Hendre, Prasad S.;Van Deynze, Allen;Achigan-Dako, Enoch G.;Hibberd, Julian M.;Schranz, M. Eric
Gynandropsis gynandra（Cleomaceae）是一种世界性的叶菜和药用植物，由于其进化上与C3拟南芥（Arabidopsis thaliana）相似，也被用作研究C4光合作用的模型。本文报道了G. gynandra，锚定在17个主要假分子上，总长度为740 Mb，N50为42 Mb，有30，933个支持良好的基因模型。共和党Gynandra基因组和先前公布的Cleomaceae和菊科C3近缘植物的基因组为研究基因组进化在C3到C4光合作用转变中的作用提供了极好的模型。分析表明，G. Gynandra与其C3近缘种Tarenaya hassleriana发生了全基因组重复事件（Gg-α），然后在T. hassleriana，而G. gynandra。C4光合相关基因家族的同线拷贝数分析表明，G. Gynandra通常比C3T保留更多的这些基因的重复拷贝。hassleriana，G. Gynandra C4基因可能处于正选择压力下。全基因组重复和单基因重复都有助于上述基因家族在G. gynandra。总的来说，这项研究增强了我们对醉蝶花科多倍性历史、基因复制和保留及其对C4光合作用进化的影响的了解。Gynandropsis gynandra基因组序列有助于比较染色体组学，并揭示了全基因组复制历史和Cleomaceae中C4光合作用的进化。
Gynandropsis gynandra (Cleomaceae) is a cosmopolitan leafy vegetable and medicinal plant, which has also been used as a model to study C4 photosynthesis due to its evolutionary proximity to C3 Arabidopsis (Arabidopsis thaliana). Here, we present the genome sequence of G. gynandra, anchored onto 17 main pseudomolecules with a total length of 740 Mb, an N50 of 42 Mb and 30,933 well-supported gene models. The G. gynandra genome and previously released genomes of C3 relatives in the Cleomaceae and Brassicaceae make an excellent model for studying the role of genome evolution in the transition from C3 to C4 photosynthesis. Our analyses revealed that G. gynandra and its C3 relative Tarenaya hassleriana shared a whole-genome duplication event (Gg-α), then an addition of a third genome (Th-α, +1×) took place in T. hassleriana but not in G. gynandra. Analysis of syntenic copy number of C4 photosynthesis-related gene families indicates that G. gynandra generally retained more duplicated copies of these genes than C3T. hassleriana, and also that the G. gynandra C4 genes might have been under positive selection pressure. Both whole-genome and single-gene duplication were found to contribute to the expansion of the aforementioned gene families in G. gynandra. Collectively, this study enhances our understanding of the polyploidy history, gene duplication and retention, as well as their impact on the evolution of C4 photosynthesis in Cleomaceae. The Gynandropsis gynandra genome sequence facilitates comparative phylogenomics and sheds light on the whole-genome duplication history and evolution of C4 photosynthesis in Cleomaceae.
登录
查看更多内容
影响因子：
10.7
作者：
Castresana, J
通讯作者：
Castresana, J
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
影响因子：
1.6
作者：
Achigan-Dako, Enoch G.;Sogbohossou, Deedi E. O.;Schranz, M. Eric
通讯作者：
Schranz, M. Eric
影响因子：
3
作者：
Edger, Patrick P.;Hall, Jocelyn C.;Pires, J. Chris
通讯作者：
Pires, J. Chris
影响因子：
5.1
作者：
Belhaj K;Chaparro-Garcia A;Kamoun S;Nekrasov V
通讯作者：
Nekrasov V