Cited by 76Genetic diversity and population structureChromosomal and Genetic VariationsEvolution and Genetic Dynamics

Reproductive isolation and introgression between sympatric Mimulus species

Kenney, Amanda M., Sweigart, Andrea L.·2016·Molecular Ecology

Abstract

Incompletely isolated species provide an opportunity to investigate the genetic mechanisms and evolutionary forces that maintain distinct species in the face of ongoing gene flow. Here, we use field surveys and reduced representation sequencing to characterize the patterns of reproductive isolation, admixture and genomic divergence between populations of the outcrossing wildflower Mimulus guttatus and selfing M. nasutus. Focusing on a single site where these two species have come into secondary contact, we find that phenological isolation is strong, although incomplete, and is likely driven by divergence in response to photoperiod. In contrast to previous field studies, which have suggested that F1 -hybrid formation might be rare, we discover patterns of genomic variation consistent with ongoing introgression. Strikingly, admixed individuals vary continuously from highly admixed to nearly pure M. guttatus, demonstrating ongoing hybridization and asymmetric introgression from M. nasutus into M. guttatus. Patterns of admixture and divergence across the genome show that levels of introgression are more variable than expected by chance. Some genomic regions show a reduced introgression, including one region that overlaps a critical photoperiod QTL, whereas other regions show elevated levels of interspecific gene flow. In addition, we observe a genome-wide negative relationship between absolute divergence and the local recombination rate, potentially indicating natural selection a…

Integrity signals

Registry

Crossref · 10.1111/mec.13630

Cites

113 of 113 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Introgression is reduced for genes or genomic regions underlying RI.

    “As well, introgression is reduced for genes or genomic regions underlying RI (Barb et al., 2014; Kenney and Sweigart, 2016; Todesco et al., 2020).”

    From Genomics of plant speciation (2023) · cites this paper as Kenney and Sweigart, 2016

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Kenney, A. M., & Sweigart, A. L.
Affiliations
University of Georgia (US)
Corresponding author
Kenney, Amanda M.
Venue
Molecular Ecology
Publisher
Wiley
Published
2016-05-11
Volume
25
Issue
11
Pages
2499-2517
ISSN
  • 0962-1083 (ISSN-L)
  • 1365-294X
OpenAlex
W2328264703
Cited by
76
References
113
Citations by year
2026: 5 · 2025: 4 · 2024: 8 · 2023: 6 · 2022: 7 · 2021: 6 · 2020: 7 · 2019: 7 · 2018: 13 · 2017: 4 · 2016: 9
FWCI
8.88
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Ecology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (DEB‐1350935, DEB-1350935)
  • University of Georgia Research Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
reproductive isolation, introgression, sympatric speciation, Mimulus guttatus, hybridization, photoperiod, self-pollination, outcrossing, admixture, genomic divergence, recombination rate, natural selection, interspecific gene flow, secondary contact
MeSH terms
Genetics, Population, Hybridization, Genetic, Sequence Analysis, DNA, Photoperiod, DNA, Plant, Genome, Plant, Mimulus, Flowers, Quantitative Trait Loci, Genetic Speciation, Gene Flow, Reproductive Isolation, Sympatry

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review