ArticleGenes & genomics2021
A comprehensive analysis of gorilla-specific LINE-1 retrotransposons.
Article in Genes & genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- LINE1 elements at distal junctions of rDNA repeats regulate nucleolar organization in human embryonic stem cells.Genes & development · 2025Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLong interspersed element-1 (LINE-1 or L1) is the most abundant retrotransposons in the primate genome. They have approximately 520,000 copies and make up ~ 17% of the primate genome. Full-length L1s can mobilize to a new genomic location using their enzymatic machinery. Gorilla is the second closest species to humans after the chimpanzee, and human-gorilla split 7-12 million years ago. The gorilla genome provides an opportunity to explore primate origins and evolution.
objectiveL1s have contributed to genome diversity and variations during primate evolution. This study aimed to identify gorilla-specific L1s using a more recent version of the gorilla reference genome (Mar. 2016 GSMRT3/gorGor5).
methodsWe collected gorilla-specific L1 candidates through computational analysis and manual inspection. L1Xplorer was used to identify whether full-length gorilla-specific L1s were intact. In addition, to determine the level of sequence conservation between intact fulllength gorilla-specific L1s, two ORFs of intact L1s were aligned with the L1PA2 consensus sequence.
results2002 gorilla-specific L1 candidates were identified through computational analysis. Among them, we manually inspected 1,883 gorilla-specific L1s, among which most of them belong to the L1PA2 subfamily and 12 were intact L1s that could influence genomic variations in the gorilla genome. Interestingly, the 12 intact full-length gorilla-specific L1s have 14 highly conserved nonsynonymous mutations, including 6 mutations and 8 mutations in ORF1 and ORF2, respectively. In comparison to the intact full-length chimpanzee-specific L1s and human-specific hot-L1s, two of these in ORF1 (L256F and E293G) were shown as gorilla-specific nonsynonymous mutations.
conclusionThe gorilla-specific L1s may have had significantly affected the gorilla genome to compose a genome different form that of other primates during primate evolution.
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