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The duplicated paired box protein 7 (pax7) genes differentially transcribed during Japanese flounder (Paralichthys olivaceus) embryogenesis
Jiao, Shuang1; Tan, Xungang1; Li, Meijie1,2; Sui, Yulei1,2; Du, Shao Jun3; You, Feng1
2015-11-01
Source PublicationCOMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
Volume189Issue:2015Pages:62-68
SubtypeArticle
AbstractPAX are important regulators of developmental processes. PAX7 plays crucial roles in patterning of the dorsal central nervous system (CNS), neural crest (NC), and skeletal muscle. Here, we identified six spliced isoforms of pax7a and one pax7b and characterized their expression patterns. All of flounder Pax7a-1, Pax7a-2, Pax7a-3, and Pax7b contain a conserved paired domain (PD), an octapeptide motif (OP), and a paired type homeodomain (HD). However, the PD of Pax7a-4 and the HD of Pax7a-5 are not intact and there is no HD in Pax7a-4 and Pax7a-6. pax7a and pax7b show distinct spatiotemporal expression patterns during embryogenesis. Whole-mount in situ hybridization demonstrates that the expression patterns of pax7a and pax7b are overlapping but distinguishable in the dorsal central nervous system. pax7a is expressed in most part of the brain and the neural tube, while pax7b is expressed exclusively in the diencephalon and the midbrain. In addition, pax7a is also expressed in the cranial NC and the trunk NC. RT-PCR results show that there were different expression patterns between the different isoforms. These results indicate subfunction partitioning of the duplicated pax7 genes. The duplicated pax7 may provide additional flexibility in fine-tuning neurogenesis and somitogenesis. (C) 2015 Elsevier Inc. All rights reserved.
KeywordExpression Pattern Pax7a Pax7b Spliced Isoforms Dermomyotome
DOI10.1016/j.cbpb.2015.08.003
Indexed BySCI
Language英语
WOS IDWOS:000361861900009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/50942
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Key Lab Expt Marine Biol, Qingdao 266071, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Maryland, Sch Med, Dept Biochem & Mol Biol, Baltimore, MD 21202 USA
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Jiao, Shuang,Tan, Xungang,Li, Meijie,et al. The duplicated paired box protein 7 (pax7) genes differentially transcribed during Japanese flounder (Paralichthys olivaceus) embryogenesis[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,2015,189(2015):62-68.
APA Jiao, Shuang,Tan, Xungang,Li, Meijie,Sui, Yulei,Du, Shao Jun,&You, Feng.(2015).The duplicated paired box protein 7 (pax7) genes differentially transcribed during Japanese flounder (Paralichthys olivaceus) embryogenesis.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,189(2015),62-68.
MLA Jiao, Shuang,et al."The duplicated paired box protein 7 (pax7) genes differentially transcribed during Japanese flounder (Paralichthys olivaceus) embryogenesis".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY 189.2015(2015):62-68.
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