Diverse trajectories of plastome degradation in holoparasitic Cistanche and genomic location of the lost plastid genes

© The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 71(2020), 3 vom: 23. Jan., Seite 877-892
1. Verfasser: Liu, Xiaoqing (VerfasserIn)
Weitere Verfasser: Fu, Weirui, Tang, Yiwei, Zhang, Wenju, Song, Zhiping, Li, Linfeng, Yang, Ji, Ma, Hong, Yang, Jianhua, Zhou, Chan, Davis, Charles C, Wang, Yuguo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Comparative Study Journal Article Research Support, Non-U.S. Gov't Cistanche degradation gene loss intracellular gene transfer plastome pseudogenization
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520 |a The plastid genomes (plastomes) of non-photosynthetic plants generally undergo gene loss and pseudogenization. Despite massive plastomes reported in different parasitism types of the broomrape family (Orobanchaceae), more plastomes representing different degradation patterns in a single genus are expected to be explored. Here, we sequence and assemble the complete plastomes of three holoparasitic Cistanche species (C. salsa, C. mongolica, and C. sinensis) and compare them with the available plastomes of Orobanchaceae. We identified that the diverse degradation trajectories under purifying selection existed among three Cistanche clades, showing obvious size differences in the entire plastome, long single copy region, and non-coding region, and different patterns of the retention/loss of functional genes. With few exceptions of putatively functional genes, massive plastid fragments, which have been lost and transferred into the mitochondrial or nuclear genomes, are non-functional. In contrast to the equivalents of the Orobanche species, some plastid-derived genes with diverse genomic locations are found in Cistanche. The early and initially diverged clades in different genera such as Cistanche and Aphyllon possess obvious patterns of plastome degradation, suggesting that such key lineages should be considered prior to comparative analysis of plastome evolution, especially in the same genus 
650 4 |a Comparative Study 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Cistanche 
650 4 |a degradation 
650 4 |a gene loss 
650 4 |a intracellular gene transfer 
650 4 |a plastome 
650 4 |a pseudogenization 
700 1 |a Fu, Weirui  |e verfasserin  |4 aut 
700 1 |a Tang, Yiwei  |e verfasserin  |4 aut 
700 1 |a Zhang, Wenju  |e verfasserin  |4 aut 
700 1 |a Song, Zhiping  |e verfasserin  |4 aut 
700 1 |a Li, Linfeng  |e verfasserin  |4 aut 
700 1 |a Yang, Ji  |e verfasserin  |4 aut 
700 1 |a Ma, Hong  |e verfasserin  |4 aut 
700 1 |a Yang, Jianhua  |e verfasserin  |4 aut 
700 1 |a Zhou, Chan  |e verfasserin  |4 aut 
700 1 |a Davis, Charles C  |e verfasserin  |4 aut 
700 1 |a Wang, Yuguo  |e verfasserin  |4 aut 
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