A role for storage proteins in autogenous reproduction in Aedes atropalpus

Diana E Wheeler, Norman A. Buck

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

In the autogenous mosquito, Aedes atropalpus, storage proteins accumulated during the larval stage may serve as an amino acid reserve for oogenesis, in addition to metamorphosis. Hexameric storage proteins accumulate during larval development and include subunits of three different masses: 62.5, 66, 72.5 kDa. All three types of subunits are found in the female but only the larger two are in males. In females, storage proteins are only partially depleted by the time of eclosion. The remaining protein amounts to about 40% of the original store. Males, in contrast, exhaust their supply of stored protein during metamorphosis. In the female, the storage proteins disappear over the first days after eclosion, and are depleted before vitellogenin/vitellin levels reach their maximum. This suggests that the amino acids held in storage proteins are transferred to vitellogenesis, enabling autogenous egg development. The fact that these amino acids are not available for egg development until after eclosion, later than in many other insects, probably reflects a relatively recent evolution from blood-feeding ancestors.

Original languageEnglish (US)
Pages (from-to)961-966
Number of pages6
JournalJournal of Insect Physiology
Volume42
Issue number10
DOIs
StatePublished - Sep 1996

Fingerprint

Georgecraigius atropalpus
Aedes
storage proteins
Reproduction
eclosion
Proteins
metamorphosis
amino acids
Amino Acids
vitellin
Ovum
Vitellins
vitellogenin
vitellogenesis
oogenesis
Vitellogenesis
Vitellogenins
larval development
Oogenesis
Culicidae

Keywords

  • Arylphorin
  • Autogeny
  • Oogenesis

ASJC Scopus subject areas

  • Insect Science
  • Physiology

Cite this

A role for storage proteins in autogenous reproduction in Aedes atropalpus. / Wheeler, Diana E; Buck, Norman A.

In: Journal of Insect Physiology, Vol. 42, No. 10, 09.1996, p. 961-966.

Research output: Contribution to journalArticle

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