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The wing-specific cuticular protein LmACP7 is essential for normal wing morphogenesis in the migratory locust.

Abstract：

:Wings are an indispensable structure in many insects for their foraging, courtship, escape from predators, and migration. Cuticular proteins are major components of the insect cuticle and wings, but there is limited information on how cuticular proteins may play an essential role in wing morphogenesis. We identified a wing-specific cuticular protein, LmACP7, which belongs to the RR-2 subfamily of CPR chitin-binding proteins in the migratory locust. LmACP7 was initially produced in epidermal cells and subsequently migrated to the exocuticle at the pre-ecdysial stage in adult wings. Depletion of LmACP7 transcripts by RNA interference markedly reduced its protein amounts, which consequently led to abnormal wing morphogenesis. The deformed wings were curved, wrinkled, and failed to fully expand. We further demonstrated that the deformation was caused by both severe damage of the endocuticle and death of the epidermal cells in the wings. Based on these data, we propose that LmACP7 not only serves as an essential structural protein in the wing but is also required for the integrity of wing epithelial cells. LmACP7 contributes to production of the wing endocuticle and to the morphogenesis of functional wings in the migratory locust.

journal_name

Insect Biochem Mol Biol

journal_title

Insect biochemistry and molecular biology

authors

Zhao X,Gou X,Liu W,Ma E,Moussian B,Li S,Zhu K,Zhang J

doi

10.1016/j.ibmb.2019.103206

subject

Has Abstract

pub_date

2019-09-01 00:00:00

pages

103206

eissn

0965-1748

issn

1879-0240

pii

S0965-1748(19)30320-0

journal_volume

112

pub_type

杂志文章

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