Crosses between frog populations reveal genetic divergence in larval life history at short geographic distance
(2006) In Biological Journal of the Linnean Society 89(1). p.189-195- Abstract
- A number of studies have documented interpopulation divergence in amphibian larval life-history traits across latitudes. Because many frogs are philopatric and have a patchy habitat distribution, genetic divergence could also exist on a much smaller geographical scale, revealed by recent estimates of population divergence using molecular markers. Whether this divergence is reflected in phenotypic traits is virtually unknown. Using artificial fertilization, individuals of the common frog, Rana temporaria, were crossed from two populations situated 130 km apart and differing in population size. The pattern of size at metamorphosis showed evidence of non-additive effects, as demonstrated by a significant interaction between male and female... (More)
- A number of studies have documented interpopulation divergence in amphibian larval life-history traits across latitudes. Because many frogs are philopatric and have a patchy habitat distribution, genetic divergence could also exist on a much smaller geographical scale, revealed by recent estimates of population divergence using molecular markers. Whether this divergence is reflected in phenotypic traits is virtually unknown. Using artificial fertilization, individuals of the common frog, Rana temporaria, were crossed from two populations situated 130 km apart and differing in population size. The pattern of size at metamorphosis showed evidence of non-additive effects, as demonstrated by a significant interaction between male and female population of origin. Outbreeding resulted in an increase in metamorph size when eggs from the small population were fertilized with sperm from the large population. In the reciprocal cross, however, the pattern was in the opposite direction, with no significant effect of male population of origin. Genetic divergence of populations separated by a relatively short geographical distance may be more common in frogs than previously acknowledged, with potential implications for conservation of declining amphibian species. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4731486
- author
- Uller, Tobias LU ; Sagvik, Jörgen and Olsson, Mats
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biological Journal of the Linnean Society
- volume
- 89
- issue
- 1
- pages
- 189 - 195
- publisher
- Oxford University Press
- external identifiers
-
- scopus:33747329413
- ISSN
- 0024-4066
- DOI
- 10.1111/j.1095-8312.2006.00673.x
- language
- English
- LU publication?
- no
- id
- c004cff8-c363-4876-8278-9a295d4b7345 (old id 4731486)
- date added to LUP
- 2016-04-01 11:39:54
- date last changed
- 2022-01-26 08:22:31
@article{c004cff8-c363-4876-8278-9a295d4b7345,
abstract = {{A number of studies have documented interpopulation divergence in amphibian larval life-history traits across latitudes. Because many frogs are philopatric and have a patchy habitat distribution, genetic divergence could also exist on a much smaller geographical scale, revealed by recent estimates of population divergence using molecular markers. Whether this divergence is reflected in phenotypic traits is virtually unknown. Using artificial fertilization, individuals of the common frog, Rana temporaria, were crossed from two populations situated 130 km apart and differing in population size. The pattern of size at metamorphosis showed evidence of non-additive effects, as demonstrated by a significant interaction between male and female population of origin. Outbreeding resulted in an increase in metamorph size when eggs from the small population were fertilized with sperm from the large population. In the reciprocal cross, however, the pattern was in the opposite direction, with no significant effect of male population of origin. Genetic divergence of populations separated by a relatively short geographical distance may be more common in frogs than previously acknowledged, with potential implications for conservation of declining amphibian species.}},
author = {{Uller, Tobias and Sagvik, Jörgen and Olsson, Mats}},
issn = {{0024-4066}},
language = {{eng}},
number = {{1}},
pages = {{189--195}},
publisher = {{Oxford University Press}},
series = {{Biological Journal of the Linnean Society}},
title = {{Crosses between frog populations reveal genetic divergence in larval life history at short geographic distance}},
url = {{http://dx.doi.org/10.1111/j.1095-8312.2006.00673.x}},
doi = {{10.1111/j.1095-8312.2006.00673.x}},
volume = {{89}},
year = {{2006}},
}