Experimental and Applied Acarology (2001) 25, 143-149

Jacek Radwan (2001)
Male morph determination in Rhizoglyphus echinopus (Acaridae)
Experimental and Applied Acarology 25 (2), 143-149
Abstract: In Rhizoglyphus echinopus (Fumouze and Robin) two male morphs occur: heteromorphs, with a thickened and sharply terminated third pair of legs that serve as a weapon in intrasexual conflicts, and homeomorphs, with unmodified legs. This study investigated the system of male morph determination. No significant heritability of male morph was found, but cues emanating from a dense colony were found to suppress the production of heteromorphs. Developmental plasticity was retained throughout the protonymphal stage. Diet did not influence morph expression, but lowered temperature decreased the proportion of heteromorphs emerging.
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Link to article at publishers website
Database assignments for author(s): Jacek Radwan

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Rhizoglyphus echinopus		Poland