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| Reinforcement: the road not taken |
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| Author(s): Marshall JL, Arnold ML, Howard DJ |
| Source: TRENDS IN ECOLOGY & EVOLUTION Volume: 17 Issue: 12 Pages: 558-563 Published: DEC 2002 |
| Times Cited: 47 References: 65 |
| Abstract: Reinforcement, a process whereby natural selection strengthens prezygotic isolation between sympatric taxa, has gained increasing attention from evolutionary biologists over the past decade. This resurgence of interest is remarkable given that, in the 1980s, most evolutionary biologists considered reinforcement to be, at best, a process that rarely occurred in nature. Although studies of reinforcement are now an important component of speciation research, we still lack a clear understanding of when reinforcement should occur. Theoretical models have suggested that genetic architecture, population structure and the type of selection influence the action of reinforcement. Still to be considered are the consequences of variation in mating system and patterns of sperm or pollen utilization on the likelihood of reinforcement. We argue that traveling down The Road Not Taken (apologies to Frost), that is, taking into consideration mating system and patterns of gamete utilization, leads to novel and more precise predictions of the circumstances under which reinforcement should occur. |
| Document Type: Editorial Material |
| Language: English |
| Reprint Address: Marshall, JL (reprint author), Univ Texas, Dept Biol, 501 S Nedderman Dr, Arlington, TX 76019 USA |
Addresses:
1. Univ Texas, Dept Biol, Arlington, TX 76019 USA
2. Univ Georgia, Dept Genet, Athens, GA 30602 USA
3. New Mexico State Univ, Dept Biol, Las Cruces, NM 88003 USA |
| Publisher: ELSEVIER SCIENCE LONDON, 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND |
| Subject Category: Ecology; Evolutionary Biology; Genetics & Heredity |
| IDS Number: 614LV |
| ISSN: 0169-5347 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |