Three populations of the North American cyprin-odont fish Poecilia latipinna, considered to be one of the progenitor species of the gynogenetic unisexual P.formosa. were analyzed by C-banding and Ag-staining. C-bands were found to be polymorphic, and Ag-staining showed a high degree of variability in both the number and location of nucleolus organizer regions. The C-banding and Ag-staining patterns allow, to a certain extern. to distinguish individual specimens from each of these populations. Females of the three populations were found to have a het-eromorphic chromosome pair, which was frequently identifiable with Giemsa staining and always after C-banding. This pair could be interpreted as sex chromosomes of the ZWZZ type.
| Identifer | oai:union.ndltd.org:ETSU/oai:dc.etsu.edu:etsu-works-15084 |
| Date | 01 January 1990 |
| Creators | Sola, Luciana, Monaco, P. J., Rasch, E. M. |
| Publisher | Digital Commons @ East Tennessee State University |
| Source Sets | East Tennessee State University |
| Detected Language | English |
| Type | text |
| Source | ETSU Faculty Works |
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