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논문 기본 정보

자료유형
학술저널
저자정보
Mi Ae Kim (GangneungWonju National University) Tae Ha Kim (GangneungWonju National University) Sora Lee (Dongguk University-Seoul) Bo‑Hye Nam (National Institute of Fisheries Science) Jung Sick Lee (Chonnam National University) Wonhee Jang (Dongguk University-Seoul) Young Chang Sohn (GangneungWonju National University)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.42 No.10
발행연도
2020.1
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1,179 - 1,188 (10page)

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Background There is now abundant information on genes involved in molluscan oogenesis and their associations with ovarian development. However, few studies have investigated the ovarian transcriptome of Pacifc abalone (Haliotis discus hannai). Objective The objective of this study was to identify genes related to ovarian development and maturation in Pacifc abalone utilizing RNA-sequencing (RNA-seq) and to verify the genes most relevant to diferent stages of maturation. Methods RNA samples from the ovarian tissues of sexually immature and mature abalone were used to construct cDNA libraries, which were paired-end sequenced on an Illumina HiSeq 2500 platform. Reads from individual samples (unigenes) were aligned to reference transcriptome databases for identifcation of diferentially expressed genes (DEGs) between immature and mature ovarian libraries. Reverse transcription-quantitative polymerase chain reaction was used to verify the RNA-seq data. Results A total of 8779 unigenes were obtained from the ovaries of immature and mature abalone, with a total length of 3323,279 bp and an average length of 379 bp per gene. Gene ontology analysis assigned 5860 unigenes to biological processes, 855 to cellular components, and 1352 to molecular functions. Overall, 470 DEGs were identifed, including 213 and 257 genes down-regulated and up-regulated in mature abalone, respectively. Among these, 13 relevant transcripts, including VTG1 and FZD7, were signifcantly highly expressed in the ovaries of mature abalone (p2). Conclusion This H. discus hannai ovary transcriptome provides molecular targets to better understand ovarian development, oogenesis, and sexual maturation, and to enhance Pacifc abalone production.

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