Your browser doesn't support javascript.
loading
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; 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.
Afiliação
  • Sezen UU; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Barney JN; Virginia Tech, Blacksburg, VA, United States of America.
  • Atwater DZ; Virginia Tech, Blacksburg, VA, United States of America.
  • Pederson GA; USDA-ARS, PGRCU, Griffin, GA, United States of America.
  • Pederson JF; USDA-ARS and University of Nebraska-Lincoln, Lincoln, NE, United States of America.
  • Chandler JM; Texas A&M University, College Station, TX, United States of America.
  • Cox TS; The Land Institute, Salina, KS, United States of America.
  • Cox S; The Land Institute, Salina, KS, United States of America.
  • Dotray P; Texas Tech University, Lubbock, TX, United States of America.
  • Kopec D; University of Arizona, Tucson, AZ, United States of America.
  • Smith SE; University of Arizona, Tucson, AZ, United States of America.
  • Schroeder J; New Mexico State University, Las Cruces, NM, United States of America.
  • Wright SD; University of California Davis, Davis CA, United States of America.
  • Jiao Y; State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, China Academy of Sciences, Beijing, China.
  • Kong W; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Goff V; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Auckland S; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Rainville LK; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Pierce GJ; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Lemke C; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Compton R; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Phillips C; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Kerr A; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Mettler M; Plant Genome Mapping Lab., Athens, GA, United States of America.
  • Paterson AH; Plant Genome Mapping Lab., Athens, GA, United States of America.
PLoS One ; 11(10): e0164584, 2016.
Article em En | MEDLINE | ID: mdl-27755565
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.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Variação Genética / Ecossistema / Sorghum País/Região como assunto: America do norte / America do sul / Colombia Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Variação Genética / Ecossistema / Sorghum País/Região como assunto: America do norte / America do sul / Colombia Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos