Sex Determiners and Speciation in the Genus Chironomus
Sex Determiners and Speciation in the Genus Chironomus
Date
1988
Authors
Martin, Jon
Lee, BTO
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
University of Hawaii Press
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
In a group of closely related Australian Chironomus species, the
position of the sex-determining region is variable, not only in different species
(or forms) but , in at least one case, also within the same form. This has raised
a number of questions regarding the nature of sex determination and the
relevance of variable sex determiners to speciation: (I) Is the sex-determiner
location altered by mutation at different steps in a genetic pathway or by translocation
(e.g., as a transposable element)? (2) Do polymorphisms for sexdeterminer
location exist, or do the apparent polymorphisms result from the
existence of cryptic species? (3) Are changes in the location of the functional
sex determiner a major component of speciation in this group? This paper
considers mainly the third question. A model of speciation involving the sex
determiner, compatible with either allopatry or sympatry, is proposed. Comparisons
are made with other groups, both invertebrate and vertebrate, which
appear to have a similar variable sex-determiner location.
Description
Keywords
Citation
Martin J, Lee BTO. 1988. Sex determiners and speciation in the genus Chironomus. Pac Sci 42(1-2): 51-55.
Extent
Format
Geographic Location
Time Period
Related To
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.