The genome of Gynandropsis gynandra provides insights into whole-genome duplications and the evolution of C 4 photosynthesis in Cleomaceae
The genome of Gynandropsis gynandra provides insights into whole-genome duplications and the evolution of C 4 photosynthesis in Cleomaceae
ABSTRACT 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 Arabidopsis. Here, we present a high-quality genome sequence of G. gynandra, anchored onto 17 main super- scaffolds 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. We 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, +1x) 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 C3 T. 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 impact of gene duplication and gene retention on the evolution of C4 photosynthesis in Cleomaceae.
Simpson Conor J. C.、Sogbohossou E. O. Deedi、van den Bergh Erik、van Haarst Jan C.、Hendre Prasad S.、Deynze Allen Van、Hibberd Julian M.、Schranz M. Eric、Schijlen Elio G. W. M.、Xiong Wei、Singh Pallavi、Achigan-Dako Enoch G.、Weber Andreas P. M.、Brautigam Andrea、Hoang Nam V.、Zhu Xin-Guang
Department of Plant Sciences, University of CambridgeBiosystematics Group, Wageningen University||Genetics, Biotechnology and Seed Science Unit (GbioS/PAGEV), Faculty of Agronomic Sciences, University of Abomey-CalaviBiosystematics Group, Wageningen UniversityBusiness Unit Bioscience, Plant Research International, Wageningen University and Research CentreAfrican Orphan Crops Consortium (AOCC), World Agroforestry (ICRAF),African Orphan Crops Consortium (AOCC), World Agroforestry (ICRAF),||Seed Biotechnology Center, University of CaliforniaDepartment of Plant Sciences, University of CambridgeBiosystematics Group, Wageningen UniversityBusiness Unit Bioscience, Plant Research International, Wageningen University and Research CentreBiosystematics Group, Wageningen UniversityDepartment of Plant Sciences, University of CambridgeGenetics, Biotechnology and Seed Science Unit (GbioS/PAGEV), Faculty of Agronomic Sciences, University of Abomey-CalaviInstitute of Plant Biochemistry, Cluster of Excellence on Plant Science (CEPLAS), Heinrich Heine University D¨1sseldorfFaculty of Biology, Bielefeld UniversityBiosystematics Group, Wageningen UniversityState Key Laboratory for Plant Molecular Genetics, Center of Excellence for Molecular Plant Sciences, Chinese Academy of Sciences
植物学遗传学生物科学研究方法、生物科学研究技术
CleomaceaeGynandropsis gynandrawhole-genome duplicationC4 photosynthesis evolutiontrait evolutiongene retentionfractionationgene duplicationpolyploidy.
Simpson Conor J. C.,Sogbohossou E. O. Deedi,van den Bergh Erik,van Haarst Jan C.,Hendre Prasad S.,Deynze Allen Van,Hibberd Julian M.,Schranz M. Eric,Schijlen Elio G. W. M.,Xiong Wei,Singh Pallavi,Achigan-Dako Enoch G.,Weber Andreas P. M.,Brautigam Andrea,Hoang Nam V.,Zhu Xin-Guang.The genome of Gynandropsis gynandra provides insights into whole-genome duplications and the evolution of C 4 photosynthesis in Cleomaceae[EB/OL].(2025-03-28)[2025-04-27].https://www.biorxiv.org/content/10.1101/2022.07.09.499295.点此复制
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