Identification of pigmentation genes in skin, muscle and tail of a Thai-flag variety of Siamese fighting fish Betta splendens

被引:0
作者
Tang, Sureerat [1 ]
Janpoom, Sirithorn [1 ]
Prasertlux, Sirikan [1 ]
Rongmung, Puttawan [1 ]
Ittarat, Wanwipa [1 ]
Ratdee, Onchuda [1 ]
Khamnamtong, Bavornlak [1 ]
Klinbunga, Sirawut [1 ]
机构
[1] Natl Sci & Technol Dev Agcy NSTDA, Natl Ctr Genet Engn & Biotechnol BIOTEC, Aquat Mol Genet & Biotechnol Res Team, Khlong Luang 12120, Pathum Thani, Thailand
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS | 2024年 / 50卷
关键词
Betta splendens; Transcriptome; Coloration; Pigmentation genes; qRT-PCR; RNA-SEQ; EVOLUTION; COLOR; KEGG; PATTERNS; GENETICS; GLI3;
D O I
10.1016/j.cbd.2024.101243
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Pigmentation genes expressed in skin, body muscle and tail of Thai-flag compared with Blue, White and Red varieties of Siamese fighting fish Betta splendens were identified. In total, 22,919 new unigenes were found. Pearson correlation and PCA analysis revealed that expression profiles of genes in muscle, skin and tail across solid color variety were similar. In contrast, those in skin and red tail part of Thai-flag were closely related but they showed different expression profiles with the white tail part. Moreover, 21,347-64,965 SNPs were identified in exonic regions of identified genes. In total, 28,899 genes were differentially expressed between paired comparisons of libraries where 13,907 genes (48.12 %) were upregulated and 14,992 genes (51.88 %) were downregulated. DEGs between paired libraries were 106-5775 genes relative to the compared libraries (56-2982 and 50-2782 for upregulated and downregulated DEGs). Interestingly, 432 pigmentation genes of B. splendens were found. Of these, 297 DEGs showed differential expression between varieties. Many DEGs in melanogenesis (Bsmcr1r, Bsmcr5r, and Bsslc2a15b), tyrosine metabolism (Bstyr, Bstyrp1b and Bsdct), stripe repressor (BsAsip1 and BsAsip2b), pteridine (Bsgch2) and carotenoid (BsBco2) biosynthesis were downregulated in the Thai-flag compared with solid color varieties. Expression of Bsbco1l, Bsfrem2b, Bskcnj13, Bszic2a and Bspah in skin, muscle and tail of Thai-flag, Blue, Red and White varieties was analyzed by qRT-PCR and revealed differential expression between fish varieties and showed anatomical tissue-preferred expression patterns in the same fish variety. The information could be applied to assist genetic-based development of new B. splendens varieties in the future.
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页数:16
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