Skip to main content
construction release_alert
Scholars@Duke will be undergoing maintenance April 11-15. Some features may be unavailable during this time.
cancel

Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa.

Publication ,  Journal Article
Rifkin, JL; Cao, G; Rausher, MD
Published in: American journal of botany
October 2021

Highly selfing plant species frequently display a distinctive suite of traits termed the selfing syndrome. Here we tested the hypothesis that these traits are grouped into correlated evolutionary modules and determined the degree of independence between such modules.We evaluated phenotypic correlations and QTL overlaps in F2 offspring of a cross between the morning glories Ipomoea lacunosa and I. cordatotriloba and investigated how traits clustered into modules at both the phenotypic and genetic level. We then compared our findings to other QTL studies of the selfing syndrome.In the I. lacunosa selfing syndrome, traits grouped into modules that displayed correlated evolution within but not between modules. QTL overlap predicted phenotypic correlations, and QTLs affecting the same trait module were significantly physically clustered in the genome. The genetic architecture of the selfing syndrome varied across systems, but the pattern of stronger within- than between-module correlation was widespread.The genetic architecture we observe in the selfing syndrome is consistent with a growing understanding of floral morphological integration achieved via pleiotropy in clustered traits. This view of floral evolution is consistent with resource limitation or predation driving the evolution of the selfing syndrome, but invites further research into both the selective causes of the selfing syndrome and how genetic architecture itself evolves in response to changes in mating system.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

October 2021

Volume

108

Issue

10

Start / End Page

2038 / 2054

Related Subject Headings

  • Quantitative Trait Loci
  • Phenotype
  • Ipomoea
  • Flowers
  • Evolutionary Biology
  • Biological Evolution
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Rifkin, J. L., Cao, G., & Rausher, M. D. (2021). Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa. American Journal of Botany, 108(10), 2038–2054. https://doi.org/10.1002/ajb2.1749
Rifkin, Joanna L., Gongyuan Cao, and Mark D. Rausher. “Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa.American Journal of Botany 108, no. 10 (October 2021): 2038–54. https://doi.org/10.1002/ajb2.1749.
Rifkin JL, Cao G, Rausher MD. Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa. American journal of botany. 2021 Oct;108(10):2038–54.
Rifkin, Joanna L., et al. “Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa.American Journal of Botany, vol. 108, no. 10, Oct. 2021, pp. 2038–54. Epmc, doi:10.1002/ajb2.1749.
Rifkin JL, Cao G, Rausher MD. Genetic architecture of divergence: the selfing syndrome in Ipomoea lacunosa. American journal of botany. 2021 Oct;108(10):2038–2054.

Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

October 2021

Volume

108

Issue

10

Start / End Page

2038 / 2054

Related Subject Headings

  • Quantitative Trait Loci
  • Phenotype
  • Ipomoea
  • Flowers
  • Evolutionary Biology
  • Biological Evolution
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology