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Sex-Biased Gene Expression and Isoform Profile of Brine Shrimp Artemia franciscana by Transcriptome Analysis

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Title
Sex-Biased Gene Expression and Isoform Profile of Brine Shrimp Artemia franciscana by Transcriptome Analysis
Other Titles
Artemia franciscana (소금물 새우)의 전사체 분석을 통한 성 편향 유전자 발현 및 다양한 isoform 유전자 발현 분석 연구
Authors
Jo, Euna
Lee, Seung-Jae
Choi, Eunkyung
Kim, Jinmu
Lee, Jun-Hyuck
Park, Hyun
Subject
AgricultureVeterinary SciencesZoology
Keywords
Artemia franciscanatranscriptomeisoformssex-biased gene expressionsex determination
Issue Date
2021-09
Citation
Jo, Euna, et al. 2021. "Sex-Biased Gene Expression and Isoform Profile of Brine Shrimp Artemia franciscana by Transcriptome Analysis". ANIMALS, 11(9): 1-15.
Abstract
Simple Summary The brine shrimp Artemia is a promising model organism for ZW sex determination system, but the genes related to sex determination and differentiation of Artemia have not yet been examined in detail. In this study, the first isoform-level transcriptome sequencing was performed on female and male Artemia franciscana. By using PacBio Iso-Seq and Illumina RNA-Seq technologies, we found 39 candidate sex determination genes that showed sex-biased gene expression. The male-biased expressed genes included DMRT1 and Sad genes, which had three and seven isoforms, respectively. Among these, the Sad gene is an ecdysteroid biosynthetic pathway gene associated with arthropod molting and metamorphosis. We propose the importance and the necessity of further research on genes involved in ecdysteroid biosynthesis. These results will contribute to understand sex determination and differentiation of Artemia and other crustaceans having ZW systems. The brine shrimp Artemia has a ZW sex determination system with ZW chromosomes in females and ZZ chromosomes in males. Artemia has been considered a promising model organism for ZW sex-determining systems, but the genes involved in sex determination and differentiation of Artemia have not yet been identified. Here, we conducted transcriptome sequencing of female and male A. franciscana using PacBio Iso-Seq and Illumina RNA-Seq techniques to identify candidate sex determination genes. Among the 42,566 transcripts obtained from Iso-Seq, 23,514 were analyzed. Of these, 2065 (8.8%) were female specific, 2513 (10.7%) were male specific, and 18,936 (80.5%) were co-expressed in females and males. Based on GO enrichment analysis and expression values, we found 10 female-biased and 29 male-biased expressed genes, including DMRT1 and Sad genes showing male-biased expression. Our results showed that DMRT1 has three isoforms with five exons, while Sad has seven isoforms with 2-11 exons. The Sad gene is involved in ecdysteroid signaling related to molting and metamorphosis in arthropods. Further studies on ecdysteroid biosynthetic genes are needed to improve our understanding of Artemia sex determination. This study will provide a valuable resource for sex determination and differentiation studies on Artemia and other crustaceans with ZW systems.
URI
https://repository.kopri.re.kr/handle/201206/13588
DOI
http://dx.doi.org/10.3390/ani11092630
Type
Article
Station
해당사항없음
Indexed
SCIE
Appears in Collections  
2021-2021, Development of potential candidates as antibiotics based on polar genetic resources (21-21) / Lee, Jun Hyuck (PM21030)
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