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Data · dataset · 2021

Data from: Co-occurrence of related asexual, but not sexual, lineages suggests that reproductive interference limits coexistence

Listed in Borealis and Agri-environmental Research Data Dataverse — shown once because both records carry DOI 10.5683/sp2/autnra

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Abstract

We used randomizations to analyse patterns of co-occurrence of sexual and apomictic (asexual) members of the North American Crepis agamic complex (Asteraceae). We expect strong asymmetry in reproductive interactions in Crepis: apomicts produce clonal seeds with no need for pollination and are not subject to reproductive interference from co-occurring relatives. However, because they still produce some viable pollen, apomicts can reduce reproductive success of nearby sexual relatives, potentially leading to eventual local exclusion of sexuals.

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Consistent with this, randomizations reveal that sexuals are over-represented in isolated sites, while apomicts freely co-occur. Incorporation of taxonomic and phylogenetic evidence indicates that this pattern is not driven by local origins of asexuals. Our evidence that patterns of local co-occurrence are structured by reproductive interference suggests an underappreciated role for these interactions in community assembly, and highlights the need for explicit tests of the relative contributions of ecological and reproductive interactions in generating patterns of limiting similarity.

Usage notes

Whitton et al Table S1 This file includes details of the cytotype designations at each site, including genome size estimates, inferred ploidy and the details of how we coded each site in our randomizations.

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Evolutionary biology 75% · Tabular 65%
Provenance · 2 source records, 21 field assertions
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Borealisdoi:10.5683/SP2/AUTNRA12 d agoJSON v1
Agri-environmental Research Data Dataversedoi:10.5683/SP2/AUTNRA11 d agoJSON v1
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