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The complete mitochondrial genome of Taxus cuspidata (Taxaceae): eight protein-coding genes have transferred to the nuclear genome
Kan, Sheng-Long; Shen, Ting-Ting; Gong, Ping; Ran, Jin-Hua; Wang, Xiao-Quan
2020
发表期刊BMC EVOLUTIONARY BIOLOGY
ISSN1471-2148
卷号20期号:1
摘要Background Gymnosperms represent five of the six lineages of seed plants. However, most sequenced plant mitochondrial genomes (mitogenomes) have been generated for angiosperms, whereas mitogenomic sequences have been generated for only six gymnosperms. In particular, complete mitogenomes are available for all major seed plant lineages except Conifer II (non-Pinaceae conifers or Cupressophyta), an important lineage including six families, which impedes a comprehensive understanding of the mitogenomic diversity and evolution in gymnosperms. Results Here, we report the complete mitogenome of Taxus cuspidata in Conifer II. In comparison with previously released gymnosperm mitogenomes, we found that the mitogenomes of Taxus and Welwitschia have lost many genes individually, whereas all genes were identified in the mitogenomes of Cycas, Ginkgo and Pinaceae. Multiple tRNA genes and introns also have been lost in some lineages of gymnosperms, similar to the pattern observed in angiosperms. In general, gene clusters could be less conserved in gymnosperms than in angiosperms. Moreover, fewer RNA editing sites were identified in the Taxus and Welwitschia mitogenomes than in other mitogenomes, which could be correlated with fewer introns and frequent gene losses in these two species. Conclusions We have sequenced the Taxus cuspidata mitogenome, and compared it with mitogenomes from the other four gymnosperm lineages. The results revealed the diversity in size, structure, gene and intron contents, foreign sequences, and mutation rates of gymnosperm mitogenomes, which are different from angiosperm mitogenomes.
关键词Taxus cuspidata Mitogenome Endosymbiotic gene transfer RNA editing Gymnosperms
学科领域Evolutionary Biology ; Genetics & Heredity
DOI10.1186/s12862-020-1582-1
收录类别SCI
语种英语
WOS关键词COMPLETE NUCLEOTIDE-SEQUENCE ; HORIZONTAL TRANSFER ; INTRON GAIN ; EVOLUTION ; REVEALS ; DNA ; PLANTS ; ORGANIZATION ; REPLACEMENT ; HYPOTHESIS
WOS研究方向Evolutionary Biology ; Genetics & Heredity
WOS记录号WOS:000513516200001
出版者BMC
文献子类Article
出版地LONDON
资助机构National Key R&D Program of China [2017YFA0605100] ; Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-SMC027] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31330008, 31370250, 31770238] ; Youth Innovation Promotion Association, Chinese Academy of Sciences [2012070]
作者邮箱jinhua_ran@ibcas.ac.cn
引用统计
被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/21911
专题系统与进化植物学国家重点实验室
作者单位1.[Kan, Sheng-Long
2.Shen, Ting-Ting
3.Gong, Ping
4.Ran, Jin-Hua
5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Kan, Sheng-Long,Shen, Ting-Ting,Gong, Ping,et al. The complete mitochondrial genome of Taxus cuspidata (Taxaceae): eight protein-coding genes have transferred to the nuclear genome[J]. BMC EVOLUTIONARY BIOLOGY,2020,20(1).
APA Kan, Sheng-Long,Shen, Ting-Ting,Gong, Ping,Ran, Jin-Hua,&Wang, Xiao-Quan.(2020).The complete mitochondrial genome of Taxus cuspidata (Taxaceae): eight protein-coding genes have transferred to the nuclear genome.BMC EVOLUTIONARY BIOLOGY,20(1).
MLA Kan, Sheng-Long,et al."The complete mitochondrial genome of Taxus cuspidata (Taxaceae): eight protein-coding genes have transferred to the nuclear genome".BMC EVOLUTIONARY BIOLOGY 20.1(2020).
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