Publikation: Triploid ZZZ Zebra FinchesTaeniopygia guttataexhibit abnormal sperm heads and poor reproductive performance
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2014
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Ibis : the International Journal of Avian Science. 2014, 156(2), pp. 472-477. ISSN 0019-1019. eISSN 1474-919X. Available under: doi: 10.1111/ibi.12135
Zusammenfassung
Here we report the first discovery of two viable triploid male Zebra Finches Taeniopygia guttata. We compared the morphology of their sperm with that of normal diploid Zebra Finches and examined eggs resulting from a triploid male and diploid female pairing to investigate whether triploid Zebra Finches can reproduce. The majority (78%) of the triploids' spermatozoa had malformed sperm heads, which were 60% larger, and all examined eggs (n = 42) were infertile. Our results tentatively suggest that triploid ZZZ Zebra Finches cannot reproduce, and thus represent a rare evolutionary dead-end.
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570 Biowissenschaften, Biologie
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fertility; sperm morphology; Taeniopygia guttata ; triploidy
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GIRNDT, Antje, Ulrich KNIEF, Wolfgang FORSTMEIER, Bart KEMPENAERS, 2014. Triploid ZZZ Zebra FinchesTaeniopygia guttataexhibit abnormal sperm heads and poor reproductive performance. In: Ibis : the International Journal of Avian Science. 2014, 156(2), pp. 472-477. ISSN 0019-1019. eISSN 1474-919X. Available under: doi: 10.1111/ibi.12135BibTex
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year={2014},
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title={Triploid ZZZ Zebra FinchesTaeniopygia guttataexhibit abnormal sperm heads and poor reproductive performance},
number={2},
volume={156},
issn={0019-1019},
journal={Ibis : the International Journal of Avian Science},
pages={472--477},
author={Girndt, Antje and Knief, Ulrich and Forstmeier, Wolfgang and Kempenaers, Bart}
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