Cytogenetics of Simulium arcticum at Little Prickly Pear Creek: A Test of the Rhodes IIL-3/IIL-7 Reproductive Isolation Hypothesis

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Authors
Riggin, Callie
Advisor
Gerald Shields
Marilyn Schendel
Joan Stottlemyer
Editor
Date of Issue
2004-04-01
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Citation
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Title
Cytogenetics of Simulium arcticum at Little Prickly Pear Creek: A Test of the Rhodes IIL-3/IIL-7 Reproductive Isolation Hypothesis
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Type
thesis
Description
Abstract
In black flies (Simuliidae), the morphospecies of classical taxonomy is composed of any number of cytologically identifiable sibling species when polytene chromosomes are analyzed. The larval polytene chromosomes of Simulium arcticum were analyzed at Little Prickly Pear Creek (LPPC) between May and July 2003. This study was carried out to test the Rhodes IIL-3/IIL-7 reproductive isolation hypothesis with more extensive analysis. Collections over a five-month emergence and analysis of approximately 100 larvae indicate support for the Rhodes IIL-3/IIL-7 reproductive isolation hypothesis. The presence of a previously undescribed cytotype, IIL-20, was also revealed. Additionally, results suggested linkage of centromeric characteristics to the IIL-3 and IIL-7 inversions.
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Degree Awarded
Bachelor's
Semester
Spring
Department
Life & Environmental Sciences