Comparative embryogenesis of Mecoptera and Lepidoptera with special reference to the abdominal prolegs

Journal of Morphology
Li-Xuan Kou, Bao-Zhen Hua

Abstract

The eruciform larvae of holometabolous insects are primarily characterized by bearing a varying number of abdominal prolegs in addition to three pairs of thoracic legs. However, whether the prolegs are evolutionarily homologous among different insect orders is still a disputable issue. We examined the embryonic features and histological structure of the prolegs of the scorpionfly Panorpa byersi Hua and Huang (Mecoptera: Panorpidae) and the Oriental armyworm Mythimna separata (Walker) (Lepidoptera: Noctuidae) to investigate whether the prolegs are homologous between these two holometabolous insect orders. In the scorpionfly, paired lateral process primordia arise on abdominal segments I-VIII (A1-A8) in line with the thoracic legs in early embryonic stages, but degenerate into triangular protuberances in later stages, and paired medial processes appear along the midventral line before dorsal closure and eventually develop into unjointed, cone-shaped prolegs. Histological observation showed that the lumina of the prolegs are not continuous with the hemocoel, differing distinctly from that of the basic appendicular plan of thoracic legs. These results suggest that the prolegs are likely secondary outgrowths in Mecoptera. In the arm...Continue Reading

References

Aug 1, 1994·Current Biology : CB·G PanganibanS B Carroll
Nov 10, 2001·Development Genes and Evolution·Y Suzuki, M F Palopoli
Oct 19, 2006·Theory in Biosciences = Theorie in Den Biowissenschaften·Stefan Richter
Apr 25, 2009·Developmental Biology·Shuichiro Tomita, Atsumi Kikuchi
Nov 3, 2009·Proceedings of the National Academy of Sciences of the United States of America·Gonzalo Giribet
Dec 1, 2006·Integrative and Comparative Biology·Deniz F Erezyilmaz
Feb 1, 2012·Arthropod Structure & Development·Dagmar Voigt, Stanislav N Gorb
Feb 22, 2012·Arthropod Structure & Development·Katharina SchneebergRolf G Beutel

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Citations

Oct 30, 2020·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Antónia Monteiro

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