Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis
Gong, L; Shi, W; Yang, M; Kong, XY; xykong@scsio.ac.cn
2018
发表期刊HYDROBIOLOGIA
卷号819期号:1页码:161-175
摘要For several decades, both concerted evolution and non-concerted evolution of rRNA genes have been discovered in a wide variety of species. To explore the evolutionary patterns and to evaluate the variability at the intra-individual and interspecific levels in Soleidae, a total of 233 complete 18S-ITS1-5.8S rDNA sequences from 11 representative species were generated. The results indicated that six species had little variation, suggesting a concerted evolutionary pattern. However, in the other five species, much variation was observed. Two or three types of 18S and ITS1-5.8S, or even the entire 18S-ITS1-5.8S rDNA sequence, were identified, suggesting a non-concerted evolutionary pattern. According to the pseudogene identification criteria, Type B and C in the five species that underwent non-concerted evolution were postulated as pseudogenes. The phylogenetic analysis based on these rDNA sequences showed that some of the pseudogenes diverged from the corresponding species or even clustered with other species, and the potential causes for this are discussed. Further analyses of the pseudogenes revealed that they could also provide particular evolutionary information, suggesting that pseudogenes should be taken into consideration rather than being discarded arbitrarily. Moreover, the results provided molecular support for the inclusion of Pseudaesopia japonica in the genus Pseudaesopia, and not in Zebrias or other genera.
部门归属[Gong, Li] Zhejiang Ocean Univ, Natl Engn Lab Marine Germplasm Resources Explorat, Zhoushan 316022, Peoples R China; [Gong, Li] Zhejiang Ocean Univ, Marine Sci & Technol Coll, Natl Engn Res Ctr Facilitated Marine Aquaculture, Zhoushan 316022, Peoples R China; [Shi, Wei; Yang, Min; Kong, Xiaoyu] Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510000, Guangdong, Peoples R China; [Shi, Wei; Yang, Min; Kong, Xiaoyu] South China Sea Bioresource Exploitat & Utilizat, Guangzhou 510000, Guangdong, Peoples R China
学科领域Marine & Freshwater Biology
关键词[WOS]Ribosomal RNA ; Concerted evolution ; Pseudogene ; Recombinant ; Flatfish
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16914
专题中科院海洋生物资源可持续利用重点实验室
通讯作者xykong@scsio.ac.cn
推荐引用方式
GB/T 7714
Gong, L,Shi, W,Yang, M,et al. Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis[J]. HYDROBIOLOGIA,2018,819(1):161-175.
APA Gong, L,Shi, W,Yang, M,Kong, XY,&xykong@scsio.ac.cn.(2018).Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis.HYDROBIOLOGIA,819(1),161-175.
MLA Gong, L,et al."Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis".HYDROBIOLOGIA 819.1(2018):161-175.
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