Polyteny: A Source of Cryptic Speciation among Copepods
A large form of the copepod Pseudocalanus is found in two warm, semi-landlocked fiords in arctic Canada, together with a similar but smaller form attributable to the widespread P. minutes . The large form has the same chromosome number as P. minutes , but has larger chromosomes and a higher nuclear...
| Published in: | Science |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
1966
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1126/science.153.3744.1641 https://www.science.org/doi/pdf/10.1126/science.153.3744.1641 |
| Summary: | A large form of the copepod Pseudocalanus is found in two warm, semi-landlocked fiords in arctic Canada, together with a similar but smaller form attributable to the widespread P. minutes . The large form has the same chromosome number as P. minutes , but has larger chromosomes and a higher nuclear DNA content. There are suggestions in the literature that other similar polytenic and cryptic species occur among copepods. |
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