Wing vein development in the sawfly Athalia rosae is regulated by spatial transcription of Dpp/BMP signaling components

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http://hdl.handle.net/10138/322353

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Huang , Y , Hatakeyama , M & Shimmi , O 2018 , ' Wing vein development in the sawfly Athalia rosae is regulated by spatial transcription of Dpp/BMP signaling components ' , Arthropod Structure & Development , vol. 47 , no. 4 , pp. 408-415 . https://doi.org/10.1016/j.asd.2018.03.003

Title: Wing vein development in the sawfly Athalia rosae is regulated by spatial transcription of Dpp/BMP signaling components
Author: Huang, Yunxian; Hatakeyama, Masatsugu; Shimmi, Osamu
Contributor: University of Helsinki, Institute of Biotechnology
Date: 2018-07
Language: eng
Number of pages: 8
Belongs to series: Arthropod Structure & Development
ISSN: 1467-8039
URI: http://hdl.handle.net/10138/322353
Abstract: Wing venation among insects serves as an excellent model to address how diversified patterns are produced. Previous studies suggest that evolutionarily conserved Decapentaplegic (Dpp)/Bone Morphogenetic Protein (BMP) signal plays a critical role in wing vein development in the dipteran Drosophila melanogaster and the hymenopteran sawfly Athalia rosae. In sawfly, dpp is ubiquitously expressed in the wing during prepupal stages, but Dpp/BMP signal is localized in the future vein cells. Since localized BMP signaling involves BMP binding protein Crossveinless (Cv), redistribution of BMP ligands appears to be crucial for sawfly wing vein formation. However, how ubiquitously expressed ligands lead to a localized signal remains to be addressed. Here, we found that BMP binding protein short gastrulation (Sog) is highly expressed in the intervein cells. Our data also reveal that BMP type I receptors thickveins (Tkv) and saxophone (Sax) are highly expressed in intervein cells and at lower levels in the vein progenitor cells. RNAi knockdown of Ar-tkv or Ar-sax indicates that both receptors are required for localized BMP signaling in the wing vein progenitor cells. Taken together, our data suggest that spatial transcription of core- and co-factors of the BMP pathway sustain localized BMP signaling during sawfly wing vein development. (C) 2018 Elsevier Ltd. All rights reserved.
Subject: 1184 Genetics, developmental biology, physiology
Sawfly Athalia rosae
Wing vein development
BMP
Dpp
HYMENOPTERA
INSECT WINGS
EVOLUTIONARY CONSTRAINTS
DROSOPHILA
BMPS
TRANSPORT
IMAGINAL DISC
MORPHOGEN GRADIENT
EXPRESSION
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