Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis

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	Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis
	Yang, M; Gong, L; Shi, W; Kong, XY
刊名	HYDROBIOLOGIA
	2018
卷号	819 期号:1 页码:161-175
通讯作者	xykong@scsio.ac.cn
英文摘要	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.
学科主题	Marine & Freshwater Biology
关键词[WOS]	Ribosomal RNA ; Concerted evolution ; Pseudogene ; Recombinant ; Flatfish
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/16914]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Yang, M,Gong, L,Shi, W,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	Yang, M,Gong, L,Shi, W,&Kong, XY.(2018).Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis.HYDROBIOLOGIA,819(1),161-175.
MLA	Yang, M,et al."Characterization of 18S-ITS1-5.8S rDNA in eleven species in Soleidae: implications for phylogenetic analysis".HYDROBIOLOGIA 819.1(2018):161-175.