Large-scale gene losses underlie the genome evolution of parasitic plant Cuscuta australis
Large-scale gene losses underlie the genome evolution of parasitic plant Cuscuta australis
Dodders (Cuscuta spp., Convolvulaceae) are root- and leafless parasitic plants. The physiology, ecology, and evolution of these obligate parasites are poorly understood. A high-quality reference genome of Cuscuta australis was assembled. Our analyses reveal that Cuscuta experienced accelerated molecular evolution, and Cuscuta and the convolvulaceous morning glory (Ipomoea) shared a common whole-genome triplication event before their divergence. C. australis genome harbors 19671 protein-coding genes, and importantly, 11.7% of the conserved orthologs in autotrophic plants are lost in C. australis. Many of these gene loss events likely result from its parasitic lifestyle and the massive changes of its body plan. Moreover, comparison of the gene expression patterns in Cuscuta prehaustoria/haustoria and various tissues of closely related autotrophic plants suggests that Cuscuta haustorium formation requires mostly genes normally involved in root development. The C. australis genome provides important resources for studying the evolution of parasitism, regressive evolution, and evo-devo in plant parasites.
Qi Jinfeng、Chang Wei、Zhang Jingxiong、Hettenhausen Christian、Shen Guojing、Wang Lei、Guo Zhenhua、Sun Ting、Qin Yan、Wu Jianqiang、Liu Hui、Li Jing、Baldwin Ian T.、Xu Yuxing、Sun Guiling
Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resourcesthe Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of SciencesInstitute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Department of Biology, Henan UniversityDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant ResourcesMax Planck Institute for Chemical EcologyDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources||the Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences||University of Chinese Academy of SciencesDepartment of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources||Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Department of Biology, Henan University
植物学遗传学分子生物学
Qi Jinfeng,Chang Wei,Zhang Jingxiong,Hettenhausen Christian,Shen Guojing,Wang Lei,Guo Zhenhua,Sun Ting,Qin Yan,Wu Jianqiang,Liu Hui,Li Jing,Baldwin Ian T.,Xu Yuxing,Sun Guiling.Large-scale gene losses underlie the genome evolution of parasitic plant Cuscuta australis[EB/OL].(2025-03-28)[2025-05-08].https://www.biorxiv.org/content/10.1101/285593.点此复制
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