Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States

Pueraria lobata (kudzu), a clonal, leguminous vine, is invading the southeastern United States at a rate of 50 000 ha per year. Genetic variability and clonal diversity were measured in 20 southeastern U.S. populations using 14 allozyme loci. Within its U.S. range, 92.9% of the loci were polymorphic...

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Main Authors: MANIATES, Rebecca Pappert, HAMRICK, J. L., DONOVAN, Lisa A.
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Language:English
Published: Institutional Knowledge at Singapore Management University 2000
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Online Access:https://ink.library.smu.edu.sg/library_research/77
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spelling sg-smu-ink.library_research-10782016-12-28T08:36:06Z Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States MANIATES, Rebecca Pappert HAMRICK, J. L. DONOVAN, Lisa A. Pueraria lobata (kudzu), a clonal, leguminous vine, is invading the southeastern United States at a rate of 50 000 ha per year. Genetic variability and clonal diversity were measured in 20 southeastern U.S. populations using 14 allozyme loci. Within its U.S. range, 92.9% of the loci were polymorphic and overall genetic diversity was 0.290. Such high levels of genetic diversity are consistent with its history of multiple introductions over an extended period of time. The average proportions of polymorphic loci and genetic diversity within populations were 55.7% (range = 28.6–85.7%) and 0.213 (range = 0.114–0.317), respectively. The proportion of total genetic diversity found among populations was similar to species with equivalent life history characters (GST = 0.199). No regional patterns of variation were seen. The number of putative genotypes in each population ranged from 2 to 26. Mean genotypic diversity was 0.694, ranging from 0.223 to 0.955. Such high levels of genotypic diversity indicate that local sites are often colonized by several propagules (most likely seeds) and/or that sexual reproduction occurs within populations after establishment. An excess of heterozygosity was observed in populations with few unique genets, implying that selection for highly heterozygous individuals may occur in populations of P. lobata. 2000-09-01T07:00:00Z text https://ink.library.smu.edu.sg/library_research/77 Research Collection Library eng Institutional Knowledge at Singapore Management University allozymes clonal Fabaceae genetic diversity invasive kudzu Pueraria lobata vine Life Sciences
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic allozymes
clonal
Fabaceae
genetic diversity
invasive
kudzu
Pueraria lobata
vine
Life Sciences
spellingShingle allozymes
clonal
Fabaceae
genetic diversity
invasive
kudzu
Pueraria lobata
vine
Life Sciences
MANIATES, Rebecca Pappert
HAMRICK, J. L.
DONOVAN, Lisa A.
Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
description Pueraria lobata (kudzu), a clonal, leguminous vine, is invading the southeastern United States at a rate of 50 000 ha per year. Genetic variability and clonal diversity were measured in 20 southeastern U.S. populations using 14 allozyme loci. Within its U.S. range, 92.9% of the loci were polymorphic and overall genetic diversity was 0.290. Such high levels of genetic diversity are consistent with its history of multiple introductions over an extended period of time. The average proportions of polymorphic loci and genetic diversity within populations were 55.7% (range = 28.6–85.7%) and 0.213 (range = 0.114–0.317), respectively. The proportion of total genetic diversity found among populations was similar to species with equivalent life history characters (GST = 0.199). No regional patterns of variation were seen. The number of putative genotypes in each population ranged from 2 to 26. Mean genotypic diversity was 0.694, ranging from 0.223 to 0.955. Such high levels of genotypic diversity indicate that local sites are often colonized by several propagules (most likely seeds) and/or that sexual reproduction occurs within populations after establishment. An excess of heterozygosity was observed in populations with few unique genets, implying that selection for highly heterozygous individuals may occur in populations of P. lobata.
format text
author MANIATES, Rebecca Pappert
HAMRICK, J. L.
DONOVAN, Lisa A.
author_facet MANIATES, Rebecca Pappert
HAMRICK, J. L.
DONOVAN, Lisa A.
author_sort MANIATES, Rebecca Pappert
title Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
title_short Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
title_full Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
title_fullStr Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
title_full_unstemmed Genetic diversity in Pueraria lobata (Fabaceae), an introduced, clonal invasive plant in the southeastern United States
title_sort genetic diversity in pueraria lobata (fabaceae), an introduced, clonal invasive plant in the southeastern united states
publisher Institutional Knowledge at Singapore Management University
publishDate 2000
url https://ink.library.smu.edu.sg/library_research/77
_version_ 1712301521240064000