Polyploidization of Indotyphlops braminus: evidence from isoform-sequencing.

Fei Zhu, Jing Lu, Ke Sun, Cao Deng, Yu Xu

BMC genomic data 2024 Feb 26

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Indotyphlops braminus, the only known triploid parthenogenetic snake, is a compelling species for revealing the mechanism of polyploid emergence in vertebrates. In this study, we applied PacBio isoform sequencing technology to generate the first full-length transcriptome of I. braminus, aiming to improve the understanding of the molecular characteristics of this species. A total of 51,849 nonredundant full-length transcript assemblies (with an N50 length of 2980 bp) from I. braminus were generated and fully annotated using various gene function databases. Our analysis provides preliminary evidence supporting a recent genome duplication event in I. braminus. Phylogenetic analysis indicated that the divergence of I. braminus subgenomes occurred approximately 11.5 ~ 15 million years ago (Mya). The full-length transcript resource generated as part of this research will facilitate transcriptome analysis and genomic evolution studies in the future. © 2024. The Author(s).

Citation

Fei Zhu, Jing Lu, Ke Sun, Cao Deng, Yu Xu. Polyploidization of Indotyphlops braminus: evidence from isoform-sequencing. BMC genomic data. 2024 Feb 26;25(1):23