Crossing experiment of Anopheles maculatus form K and Anopheles willmori (James) (Diptera: Culicidae)

We recently reported crossing experiments between Anopheles maculatus form K and five members of the Maculatus group to support the specific status of form K. In the present study, we performed further crosses between form K and a sixth species of the Maculatus group, Anopheles willmori (James). Low...

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Bibliographic Details
Published in:Parasitology research (1987) 2008-11, Vol.103 (6), p.1317-1322
Main Authors: Somboon, Pradya, Thongwat, Damrongpan, Morgan, Katy, Walton, Catherine
Format: Article
Language:English
Subjects:
Animals
Anopheles - classification
Anopheles - genetics
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Chromosomes
Crosses, Genetic
Female
Fundamental and applied biological sciences. Psychology
General aspects
General aspects and techniques. Study of several systematic groups. Models
Hybridization, Genetic
Immunology
Insecta
Invertebrates
Male
Medical Microbiology
Microbiology
Original Paper
Species Specificity
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Summary:We recently reported crossing experiments between Anopheles maculatus form K and five members of the Maculatus group to support the specific status of form K. In the present study, we performed further crosses between form K and a sixth species of the Maculatus group, Anopheles willmori (James). Low viability was observed in hybrid males and females. All hybrid males were sterile with atrophied testes, or partially sterile with abnormal spermatozoa. The hybrid females showed normal ovaries. The ovarian nurse cell polytene chromosomes of the F₁ hybrid females displayed complete asynapsis. Backcrossing showed low viability. All males were sterile with atrophied testes or partially sterile with abnormal spermatozoa, and the females showed varying degrees of atrophied ovaries. The results provide clear evidence that form K is not conspecific to A. willmori supporting previous studies that form K represents another species of the Maculatus group.
ISSN:0932-0113
1432-1955
DOI:10.1007/s00436-008-1135-9