Rapid response to artificial selection on flower size in Phlox
نویسندگان
چکیده
منابع مشابه
The cost of reinforcement: selection on flower color in allopatric populations of Phlox drummondii.
Reinforcement is the process by which increased reproductive isolation between incipient species evolves due to selection against maladaptive hybrids or costly hybrid mating. Reinforcement is predicted to create a pattern of greater prezygotic reproductive isolation in regions where the two species co-occur, sympatry, than in allopatry. Although most research on reinforcement focuses on underst...
متن کاملMolecular signatures of selection on reproductive character displacement of flower color in Phlox drummondii.
Character displacement, which arises when species diverge in sympatry to decrease competition for resources or reproductive interference, has been observed in a wide variety of plants and animals. A classic example of reproductive character displacement, presumed to be caused by reinforcing selection, is flower-color variation in the native Texas wildflower Phlox drummondii. Here, we use popula...
متن کاملA Genetical Study of Flower Form and Flower Color in PHLOX DRUMMONDII.
The “Star Phloxes” .,. 191 Discussion ............................................................... 200 The funnel-shaped phloxes ................................................ 204 Genetics of flower color ...................................................... zog Factor differences involved when type with completely white flowers (A) was crossed with type having dark-eyed white-bladed flow...
متن کاملArtificial selection on male genitalia length alters female brain size.
Male harassment is a classic example of how sexual conflict over mating leads to sex-specific behavioural adaptations. Females often suffer significant costs from males attempting forced copulations, and the sexes can be in an arms race over male coercion. Yet, despite recent recognition that divergent sex-specific interests in reproduction can affect brain evolution, sexual conflict has not be...
متن کاملFitness consequences of artificial selection on relative male genital size
Male genitalia often show remarkable differences among related species in size, shape and complexity. Across poeciliid fishes, the elongated fin (gonopodium) that males use to inseminate females ranges from 18 to 53% of body length. Relative genital size therefore varies greatly among species. In contrast, there is often tight within-species allometric scaling, which suggests strong selection a...
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ژورنال
عنوان ژورنال: Heredity
سال: 2003
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800249