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New Ther1-derived SINE Squam3 in scaled reptiles.

ABSTRACT:

Background

SINEs comprise a significant part of animal genomes and are used to study the evolution of diverse taxa. Despite significant advances in SINE studies in vertebrates and higher eukaryotes in general, their own evolution is poorly understood.

Results

We have discovered and described in detail a new Squam3 SINE specific for scaled reptiles (Squamata). The subfamilies of this SINE demonstrate different distribution in the genomes of squamates, which together with the data on similar SINEs in the tuatara allowed us to propose a scenario of their evolution in the context of reptilian evolution.

Conclusions

Ancestral SINEs preserved in small numbers in most genomes can give rise to taxa-specific SINE families. Analysis of this aspect of SINEs can shed light on the history and mechanisms of SINE variation in reptilian genomes.

SUBMITTER: Vassetzky NS

PROVIDER: S-EPMC7983390 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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New Ther1-derived SINE Squam3 in scaled reptiles.

Vassetzky Nikita S NS Kosushkin Sergei A SA Korchagin Vitaly I VI Ryskov Alexey P AP

Mobile DNA 20210322 1

<h4>Background</h4>SINEs comprise a significant part of animal genomes and are used to study the evolution of diverse taxa. Despite significant advances in SINE studies in vertebrates and higher eukaryotes in general, their own evolution is poorly understood.<h4>Results</h4>We have discovered and described in detail a new Squam3 SINE specific for scaled reptiles (Squamata). The subfamilies of this SINE demonstrate different distribution in the genomes of squamates, which together with the data o ...[more]

PMID: 33752750

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