Data from: Multiple reproductive barriers separate recently diverged sunflower ecotypes

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Data from: Multiple reproductive barriers separate recently diverged sunflower ecotypes Ostevik, Katherine L.; Andrew, Rose L.; Otto, Sarah P.; Rieseberg, Loren H.

Description

Abstract
Measuring reproductive barriers between groups of organisms is an effective way to determine the traits and mechanisms that impede gene flow. However, to understand the ecological and evolutionary factors that drive speciation, it is important to distinguish between the barriers that arise early in the speciation process and those that arise after speciation is largely complete. In this paper we comprehensively test for reproductive isolation between recently diverged (< 10,000 years bp) dune and non-dune ecotypes of the prairie sunflower, Helianthus petiolaris. We find reproductive barriers acting at multiple stages of hybridization, including premating, postmating-prezygotic, and postzygotic barriers, despite the recent divergence. Barriers include extrinsic selection against immigrants and hybrids, a shift in pollinator assemblage, and post-pollination assortative mating. Together these data suggest that multiple barriers can be important for reducing gene flow in the earliest stages of speciation.
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2012_RT_Plots

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Title	Data from: Multiple reproductive barriers separate recently diverged sunflower ecotypes
Creator	Ostevik, Katherine L.; Andrew, Rose L.; Otto, Sarah P.; Rieseberg, Loren H.
Date Issued	2021-05-19
Description	Abstract Measuring reproductive barriers between groups of organisms is an effective way to determine the traits and mechanisms that impede gene flow. However, to understand the ecological and evolutionary factors that drive speciation, it is important to distinguish between the barriers that arise early in the speciation process and those that arise after speciation is largely complete. In this paper we comprehensively test for reproductive isolation between recently diverged (< 10,000 years bp) dune and non-dune ecotypes of the prairie sunflower, Helianthus petiolaris. We find reproductive barriers acting at multiple stages of hybridization, including premating, postmating-prezygotic, and postzygotic barriers, despite the recent divergence. Barriers include extrinsic selection against immigrants and hybrids, a shift in pollinator assemblage, and post-pollination assortative mating. Together these data suggest that multiple barriers can be important for reducing gene flow in the earliest stages of speciation.; Usage notes 2012_RT_Plots
Subject	Other; sand dune adaptation; ecological divergence; Helianthus petiolaris; incipient speciation; pollen competition
Geographic Location	Colorado; United States of America; Great Sand Dunes National Park
Type	Dataset
Notes	Dryad version number: 1 Version status: submitted Dryad curation status: Published Sharing link: https://datadryad.org/stash/share/-t7zWfGXA4FMV4VX4ibyrqgblF7D2TJlIDJxlhTbsmI</p> Storage size: 990336 Visibility: public
Date Available	2020-06-24
Provider	University of British Columbia Library
License	CC0 1.0
DOI	10.14288/1.0397617
URI	https://doi.org/10.5683/SP2/B57JL1
Publisher DOI	https://doi.org/10.5683/SP2/B57JL1; https://doi.org/10.5061/dryad.223p4
Rights URI	http://creativecommons.org/publicdomain/zero/1.0
Aggregated Source Repository	Dataverse

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