Molecular characterization of the sans fille gene in Antheraea pernyi: A highly conserved gene during the evolution of animals
文献类型: 外文期刊
第一作者: Li, Ya-Jie
作者: Li, Ya-Jie;Mi, Rui;Meng, Nan;Wen, Zhi-Xin;Li, Xue-Jun;Liu, Yan-Qun;Li, Shu-Ying;Chen, Mo;Liu, Yan-Qun;Li, Shu-Ying
作者机构:
关键词: Antheraea pernyi;Sans fills gene;Homologous comparison;Expression pattern
期刊名称:JOURNAL OF ASIA-PACIFIC ENTOMOLOGY ( 影响因子:1.303; 五年影响因子:1.427 )
ISSN: 1226-8615
年卷期: 2013 年 16 卷 3 期
页码:
收录情况: SCI
摘要: Sans-fille (SNF) is the Drosophila homologue of mammalian general splicing factors U1A and U2B '', and plays an important role in sex determination in Drosophila melanogaster. In this study, the snf gene from Antheraea pernyi (Lepidoptera: Saturniidae), an economically important insect, was isolated and characterized. The obtained 925 bp cDNA sequence contains an open reading frame of 669 bp encoding a polypeptide of 222 amino acids, showing 78% sequence identity to that from D. melanogaster. A database search revealed that SNF protein homologs are present in many animals, including invertebrates and vertebrates, with more than 70% amino acid sequence identities, suggesting that they were highly conserved during the evolution of animals. Phylogenetic analysis revealed that A. pernyi SNF was closely related to Bombyx mori SNF. Quantitative real-time PCR (qRT-PCR) analysis showed that the A. pernyi snf gene was transcribed during five larval developmental stages, and in six tested tissues (ovaries, testes, silk glands, fat body, integument, and hemolymph), with the most abundance determined in the gonads (ovaries or testes). Investigation of expression changes throughout embryonic development indicated that A. pernyi snf mRNA was expressed at a low level from days 0 to 4, and reached a maximum level at day 10, but decreased to a low level before hatching. These results suggest that the product of the snf gene may play important roles in the development of A. pernyi. (C) Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society, 2013. Published by Elsevier B.V. All rights reserved.
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