Experimental hybridization of Angiostrongylus mackerrasae, Bhaibulaya, 1968 and Angiostrongylus cantonensis (Chen, 1935) |
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Authors: | Manoon Bhaibulaya |
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Institution: | Department of Parasitology, University of Queensland, St. Lucia, Brisbane, 4067, Queensland, Australia |
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Abstract: | Angiostrongylus mackerrasae and A. cantonensis are closely related and their status as distinct species was tested by experimental hybridization. Hybridization between A. mackerrasae and A. cantonensis was observed and the morphology of the F1 hybrids was found to be intermediate between that of the parental species which suggests strongly that A. mackerrasae and A. cantonensis are both valid species. However, male F1 hybrids were sterile, whereas females were fertile; no evidence of parthenogenesis or other form of asexual reproduction were observed in either species. It is suggested that A. mackerrasae and A. cantonensis may cross breed in nature. |
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Keywords: | Experimental hybridization Angiostrongylus mackerrasae Angiostrongylus cantonensis nematode lungworm validity of species |
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