The role of [His7]-corazonin in the control of body-color polymorphism in the migratory locust, Locusta migratoria (Orthoptera: Acrididae)

  title={The role of [His7]-corazonin in the control of body-color polymorphism in the migratory locust, Locusta migratoria (Orthoptera: Acrididae)},
  author={Seiji Tanaka},
  journal={Journal of Insect Physiology},
  • Seiji Tanaka
  • Published 1 August 2000
  • Biology
  • Journal of Insect Physiology

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Hormonal control of body-color polymorphism in Locusta migratoria: interaction between

  • Tanaka
  • Biology
    Journal of insect physiology
  • 2000

Phase-related morphological changes induced by [His7]-corazonin in two species of locusts, Schistocerca gregaria and Locusta migratoria (Orthoptera: Acrididae)

The hypothesis that [His7]-corazonin plays an important role in the control of phase polymorphism in locusts is supported, thanks to single injections of the peptide into individually-reared nymphs at different instars.

Hormonal Control of Body-Color Polyphenism in the American Grasshopper, Schistocerca americana: A Function of [His7]-Corazonin

The results may suggest that [His7]-corazonin and JH are involved in the control of black pattern expression and green-brown polyphenism, respectively, in this grasshopper.

Effects of temperature and [His7]‐corazonin on the body darkening in Locusta migratoria

It is indicated that high temperature may induce light body coloration by suppressing the release of [His7]‐corazonin in normal locusts.

Induction of darkening by corazonins in several species of Orthoptera and their possible presence in ten insect orders

The results suggest that [His7]-corazonin or a similar neuropeptide may be involved in the control of body color in the locusts and grasshoppers, but not in the katydid.

Body color polymorphism in nymphs and adults of a katydid, Conocephalus maculatus (Orthoptera: Tettigoniidae)

The present results show that color-morph determination is controlled mainly by genetic factors and little affected by environmental factors in nymphs and adults of C. maculatus.



A cricket (Gryllus bimaculatus) neuropeptide induces dark colour in the locust, Locusta migratoria

A revision of the genus Locusta, L. (= Pachytylus, Fieb.), with a new theory as to the periodicity and migrations of locusts

The genus Locusta, L. (= Pachytylus, Fieb.) includes two of the most destructive swarming locusts of the Old World: the widely distributed L. migratoria , L. danica, and the South African L. pardalina.

Identification of the gregarization-associated dark-pigmentotropin in locusts through an albino mutant.

Results show that even in isolated (solitary) nymphs, [His7] corazonin induces gregarious black patterns, and its primary structure shows some similarity with the vertebrate melanophore stimulating hormone.

Hormonal Deficiency Causing Albinism in Locusta migratoria

Implantation of corpora cardiaca taken from a normal hopper caused albino hoppers to turn grey, reddish, brown, or dark brown like the colors of normal isolated solitary individuals, and others to develop the black and orange coloration like that of normal gregarious hoppers, suggesting that some hormonal factor(s) commonly present in different insects can promote dark pigmentation inAlbino locusts.

The Phases of Locusts in South Africa

Examining the hypothesis of Potgieter in the light of these experiments, it is found that the data presented in Tables XXI to XXIV are in direct contradiction with the three phases enumerated above.

The physiology of locust phase polymorphism: an update.