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Abstract
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Article Information:
A Comparison of Female Reproductive System in Agabus Biguttatus Olivier, 1795 and Agabus Conspersus Marsham, 1802 (Coleoptera, Dytiscidae) in Different Seasons from Southern Iran
Rokhsareh Malekpour and Amir Houshang Shiva
Corresponding Author: Rokhsareh Malekpour
Submitted: 2011 August, 23
Accepted: 2011 September, 14
Published: 2011 October, 15 |
Abstract:
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Agabus biguttatus and Agabus conspersus have been selected as a model in order to compare the
seasonal variations of female reproductive system. Specimens were collected from a spring-stream from
southern Iran between mid-spring 2003 to mid-Winter 2004. The female internal reproductive system of A. conspersus, showed no outstanding difference in different seasons when compared with A. biguttatus in regards
to general shape and structure. The greatest difference was in the size and shape of bursa copulatrix. The bursa
copulatrix (a part of female reproductive system) has a cuticular feature with some parallel lines on it in A.
conspersus. However, the bursa copulatrix has a soft feature without any lines on it. In addition, by studying
the reproductive systems in different seasons, two phases, developing and degenerative can be proposed for
them. In developing phase (mature, ready for mating) the length and diameter of gonads and accessory glands
were larger than in degenerative phase. All the specimens collected in spring and summer demonstrate
developing phase, while the autumn and winter specimens show the degenerative one.
Key words: Agabus biguttatus, Agabus conspersus, Coleoptera, Dytiscidae, female reproductive system, Iran, seasonal changes
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Cite this Reference:
Rokhsareh Malekpour and Amir Houshang Shiva, . A Comparison of Female Reproductive System in Agabus Biguttatus Olivier, 1795 and Agabus Conspersus Marsham, 1802 (Coleoptera, Dytiscidae) in Different Seasons from Southern Iran. International Journal of Animal and Veterinary Advances, (5): 397-401.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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