Data from: Patterns of mating and generation of diversity in a Geum hybrid swarm
| Main Authors: | Ruhsam, Markus, Hollingsworth, Peter M., Ennos, Richard A. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4999713 |
Daftar Isi:
- To understand the evolutionary consequences of hybridization between the outcrossing plant Geum rivale and the selfer G. urbanum we tested the predictions of two simple models which assume either A). low or B). high pollen fitness in hybrids. Model A predicts only four genotypic classes (G. rivale, G. rivale backcross (BCR), F1 and G. urbanum) and asymmetric introgression from inbreeding to outbreeding species. Model B predicts additional genotypic classes and potential generation of novel inbreeding lines in the hybrid swarm. AFLP analysis of adults revealed only the four genotypes predicted by model A. However, microsatellite analysis of parent-progeny arrays demonstrated production of selfed offspring by F1 and BCR maternal parents and contribution of these genotypes to outcross pollen pools, as predicted by model B. Moreover AFLP and morphological analysis showed that the offspring generation comprised genotypes and phenotypes covering the entire spectrum of variation between the two parental species, in line with model B. A common garden experiment indicated no systematic reduction in fitness of offspring derived from hybrid parents. The genetic structure of the adults in the Geum hybrid swarm cannot be explained by restricted mating patterns but may result from ecological selection acting on a diverse offspring population.
- AFLP, Microsatellite, Morphology and Fitness dataThe data file contains the raw data for 30 adults from a Geum urbanum x G. rivale hybrid swarm plus their open pollinated offspring (collected outside Edinburgh, Scotland). AFLP tab: scoring sheet for 202 AFLP markers of 30 adults and 5 of their open pollinated offspring each, 12 reference samples each from pure Geum urbanum and G. rivale populations and 15 controlled F1 crosses. The Microsatellite tab contains the scoring for 3 SSR loci of the same 30 adults plus 10 of their open pollinated offspring. The Morphology tab contains 9 morphological measurements taken in a common garden environment for the same samples used in the AFLP file apart from reference and controlled F1 samples. The Fitness tab contains the number of seed heads and leaf volume produced in a common garden environment for the same offspring samples used in the AFLP file.Dryad.xls