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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
Source PublicationHYDROBIOLOGIA
Volume819Issue:1Pages:161-175
AbstractFor 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.
Department[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
Subject AreaMarine & Freshwater Biology
WOS KeywordRibosomal RNA ; Concerted evolution ; Pseudogene ; Recombinant ; Flatfish
Funding ProjectLMB
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16914
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorxykong@scsio.ac.cn
Recommended Citation
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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