Karyotype and the sex determining mechanism of the mite Hemisarcoptes coccophagus Meyer (Acarifomes: Astigmata: Hemisarcoptidae)

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Karyotype and the sex determining mechanism of the mite Hemisarcoptes coccophagus Meyer (Acarifomes: Astigmata: Hemisarcoptidae)

Year: 

1995

Source of publication :

International Journal of Acarology

Authors :

ויסוקי, מנס

.

Volume :

Co-Authors: 

Izraylevich, S., Department of Entomology, The Hebrew University of Jerusalem, Rehovot, 76100, Israel
Gerson, U., Department of Entomology, The Hebrew University of Jerusalem, Rehovot, 76100, Israel
Wysoki, M., Department of Entomology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel

From page: 

229

To page: 

232

(

Total pages: 

4

)

Link :

Karyotype and the sex determining mechanism of the mite Hemisarcoptes coccophagus Meyer (Acarifomes: Astigmata: Hemisarcoptidae)

Abstract: 

Hemisarcoptes coccophagus Meyer (Acariformes: Astigmata: Hemisarcoptidae) is a parasite of armored scale insects (Homoptera: Diaspididae). This mite can adjust the sex ratio of its progeny. We found that H. coccophagus has a diploid karyotype with 2n=14 in both sexes; the sex determining mechanism is either diplo-diploidy or parahaploidy. This provides one of the few examples, and the first in the Acariformes, of a non-arrhenotokous arthropod genetic system with the ability of facultative sex ratio adjustment. © 1995 Taylor and Francis Group, LLC.