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LmIntegrinβ‐PS is required for wing morphogenesis and development in Locusta migratoria
Author(s) -
Zhao XiaoMing,
Niu Niu,
Yang JiaPeng,
Liu WeiMin,
Zhang JianZhen
Publication year - 2021
Publication title -
insect science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 45
eISSN - 1744-7917
pISSN - 1672-9609
DOI - 10.1111/1744-7917.12801
Subject(s) - biology , morphogenesis , microbiology and biotechnology , integrin , extracellular matrix , wing , cell adhesion , cell adhesion molecule , cytoskeleton , epidermis (zoology) , cell , anatomy , gene , genetics , aerospace engineering , engineering
Wings are an important flight organ of insects and their morphogenesis depends on a series of cell‐to‐cell and cell‐to‐extracellular matrix interactions. Integrin as a transmembrane protein receptor mediates cell‐to‐cell adhesion, cell‐to‐extracellular matrix interactions and signal transduction. In the present study, we characterized an integrin gene that encodes integrinβ‐PS protein in Locusta migratoria. LmIntegrinβ‐PS is highly expressed in the wing pads and the middle stages of 5th instar nymphs. Immunohistochemical analysis revealed that the LmIntegrinβ‐PS protein was localized at the cell base of the two layers of wings. After suppression of LmIntegrinβ‐PS by RNA interference, the wing pads or wings were unable to form normally, with a blister wing appearance during nymph to nymph transition and nymph to adult transition. We further found that the dorsal and ventral epidermis of the wings after ds LmIntegrinβ‐PS injection were improperly connected and formed huge cavities revealed by hematoxylin and eosin staining. Furthermore, the morphology and structure of the wing cuticle was significantly disturbed which affected the stable arrangement and attachments of the wing epidermis. Moreover, the expression of related cell adhesion genes was significantly decreased in LmIntegrinβ‐PS ‐suppressed L. migratoria , suggesting that LmIntegrinβ‐PS is required for the morphogenesis and development of wings during molting by stabilizing cell adhesion and maintaining the cytoskeleton of these cells.