Larval legs of mulberry silkworm Bombyx mori are prototypes for the adult legs

@article{Singh2007LarvalLO,
  title={Larval legs of mulberry silkworm Bombyx mori are prototypes for the adult legs},
  author={Amit Singh and Madhuri Kango-Singh and Ramalingam Parthasarathy and Karumathil P. Gopinathan},
  journal={genesis},
  year={2007},
  volume={45}
}
Morphological diversity of leg appendages is one of the hallmarks of developmental evolution. Limbs in insects may develop either from their embryonic prototypes or from imaginal discs harbored inside the larva. Bombyx mori (B. mori), a Lepidopteran insect, develops adult wings from larval wing imaginal discs. However, it has been debated whether the adult legs of B. mori arise from imaginal discs or from the larval legs. Here we addressed how the larval legs relate to their adult counterparts… 
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Zinc finger protein rotund deficiency affects development of the thoracic leg in Bombyx mori
TLDR
Cloning the full length of a zinc finger gene rotund from Bombyx mori showed that Bmrn is involved in the formation of the tarsus and pretarsus, whereas its homologous gene in Drosophila has been shown to affect three tarsal segments, suggesting that the remodeling of the leg has involved changes in the patterning of gene regulation during evolution.
Bmdelta phenotype implies involvement of Notch signaling in body segmentation and appendage development of silkworm, Bombyx mori.
  • Wenbin Liu
  • Biology
    Arthropod structure & development
  • 2013
Fine Mapping of a Degenerated Abdominal Legs Mutant (Edl) in Silkworm, Bombyx mori
TLDR
It is found that changes in BmUbx and Bmabd-A expression may lead to the loss of distal proleg structures in B. mori.
Limb regeneration modulates reproductive attributes in ladybirds: A case study in Propylea dissecta and Coccinella septempunctata
TLDR
It can be concluded that regeneration ability modulates the life attributes of the ladybirds irrespective of their body size.
Does regeneration ability influence reproductive fitness in Menochilus sexmaculatus (Coleoptera: Coccinellidae)?
Functional analyses in the silkworm, Bombyx mori, support a role for Notch signaling in appendage development but not the groucho-dependent pair-rule process.
  • Wenbin Liu
  • Biology
    Journal of experimental zoology. Part B, Molecular and developmental evolution
  • 2012
TLDR
The results show that the involvement of Bmgro during the pair-rule process is not mediated by Notch signaling in silkworm, and notch signaling remains in appendage segmentation and restriction of cell fate.
Ultrabithorax and abdominal-A specify the abdominal appendage in a dosage-dependent manner in silkworm, Bombyx mori
TLDR
It is proposed that overexpressed Bmabd-A gene is capable to promote the outgrowth of extra leg appendages on A1 and A2 segments, whereas BmUbx gene is required to specify accurate morphologies of the ectopic legs in a dosage-dependent manner in silkworm.
Abd-B suppresses lepidopteran proleg development in posterior abdomen.
Sexual selection drives the evolution of limb regeneration in Harmonia axyridis (Coleoptera: Coccinellidae).
TLDR
Harmonia axyridis larvae subjected to amputation of a foreleg in the fourth instar, 83% survived and, of these, 75% regenerated the leg during pupation, the first report of complete limb regeneration by a holometabolous insect in the pupal stage, and the first example of sexual selection for regenerative capacity.
Comparison of Leg Regeneration Potency Between Holometabolous Helicoverpa armigera (Lepidoptera: Noctuidae) and Hemimetabolous Locusta migratoria manilensis (Orthoptera: Acrididae)
TLDR
This is the first report of complete leg regeneration capacity having a strong correlation with the instar but not with the position where amputation occurred for H. armigera, while for the L. migratoria, partial regenerative ability had a close relationship with the positions where amputations occurred butNot with instars.
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