Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense

U. Uzay Sezen, Jacob N. Barney, Daniel Z. Atwater, Gary A. Pederson, Jeffrey F. Pederson, J. Mike Chandler, T. Stan Cox, Sheila Cox, Peter Dotray, David M Kopec, Steven E Smith, Jill Schroeder, Steven D. Wright, Yuannian Jiao, Wenqian Kong, Valorie Goff, Susan Auckland, Lisa K. Rainville, Gary J. Pierce, Cornelia Lemke & 5 others Rosana Compton, Christine Phillips, Alexandra Kerr, Matthew Mettler, Andrew H. Paterson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Johnsongrass (Sorghum halepense) is a striking example of a post-Columbian founder event. This natural experiment within ecological time-scales provides a unique opportunity for understanding patterns of continent-wide genetic diversity following range expansion. Microsatellite markers were used for population genetic analyses including leaf-optimized Neighbor-Joining tree, pairwise FST, mismatch analysis, principle coordinate analysis, Tajima's D, Fu's F and Bayesian clusterings of population structure. Evidence indicates two geographically distant introductions of divergent genotypes, which spread across much of the US in <200 years. Based on geophylogeny, gene flow patterns can be inferred to have involved five phases. Centers of genetic diversity have shifted from two introduction sites separated by ∼2000 miles toward the middle of the range, consistent with admixture between genotypes from the respective introductions. Genotyping provides evidence for a 'habitat switch' from agricultural to non-agricultural systems and may contribute to both Johnsongrass ubiquity and aggressiveness. Despite lower and more structured diversity at the invasion front, Johnsongrass continues to advance northward into cooler and drier habitats. Association genetic approaches may permit identification of alleles contributing to the habitat switch or other traits important to weed/invasive management and/or crop improvement.

Original languageEnglish (US)
Article numbere0164584
JournalPLoS One
Volume11
Issue number10
DOIs
StatePublished - Oct 1 2016

Fingerprint

Sorghum halepense
Sorghum
Ecosystem
Switches
habitats
Joining
Microsatellite Repeats
Flow patterns
Crops
Genes
Genotype
genetic variation
Gene Flow
genotype
Population Genetics
coolers
genotyping
Cluster Analysis
aggression
population genetics

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Sezen, U. U., Barney, J. N., Atwater, D. Z., Pederson, G. A., Pederson, J. F., Chandler, J. M., ... Paterson, A. H. (2016). Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense. PLoS One, 11(10), [e0164584]. https://doi.org/10.1371/journal.pone.0164584

Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense. / Sezen, U. Uzay; Barney, Jacob N.; Atwater, Daniel Z.; Pederson, Gary A.; Pederson, Jeffrey F.; Chandler, J. Mike; Cox, T. Stan; Cox, Sheila; Dotray, Peter; Kopec, David M; Smith, Steven E; Schroeder, Jill; Wright, Steven D.; Jiao, Yuannian; Kong, Wenqian; Goff, Valorie; Auckland, Susan; Rainville, Lisa K.; Pierce, Gary J.; Lemke, Cornelia; Compton, Rosana; Phillips, Christine; Kerr, Alexandra; Mettler, Matthew; Paterson, Andrew H.

In: PLoS One, Vol. 11, No. 10, e0164584, 01.10.2016.

Research output: Contribution to journalArticle

Sezen, UU, Barney, JN, Atwater, DZ, Pederson, GA, Pederson, JF, Chandler, JM, Cox, TS, Cox, S, Dotray, P, Kopec, DM, Smith, SE, Schroeder, J, Wright, SD, Jiao, Y, Kong, W, Goff, V, Auckland, S, Rainville, LK, Pierce, GJ, Lemke, C, Compton, R, Phillips, C, Kerr, A, Mettler, M & Paterson, AH 2016, 'Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense', PLoS One, vol. 11, no. 10, e0164584. https://doi.org/10.1371/journal.pone.0164584
Sezen UU, Barney JN, Atwater DZ, Pederson GA, Pederson JF, Chandler JM et al. Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense. PLoS One. 2016 Oct 1;11(10). e0164584. https://doi.org/10.1371/journal.pone.0164584
Sezen, U. Uzay ; Barney, Jacob N. ; Atwater, Daniel Z. ; Pederson, Gary A. ; Pederson, Jeffrey F. ; Chandler, J. Mike ; Cox, T. Stan ; Cox, Sheila ; Dotray, Peter ; Kopec, David M ; Smith, Steven E ; Schroeder, Jill ; Wright, Steven D. ; Jiao, Yuannian ; Kong, Wenqian ; Goff, Valorie ; Auckland, Susan ; Rainville, Lisa K. ; Pierce, Gary J. ; Lemke, Cornelia ; Compton, Rosana ; Phillips, Christine ; Kerr, Alexandra ; Mettler, Matthew ; Paterson, Andrew H. / Multi-phase US spread and habitat switching of a post-columbian invasive, Sorghum halepense. In: PLoS One. 2016 ; Vol. 11, No. 10.
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