Genetic structure of invasive weed Parthenium hysterophorus in Australia and Pakistan

Jabeen, Rasheda, Prentis, Peter, Anjum, Tehmina and Adkins, Steve W. (2015) Genetic structure of invasive weed Parthenium hysterophorus in Australia and Pakistan. International Journal of Agriculture and Biology, 17 2: 327-333.

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Author Jabeen, Rasheda
Prentis, Peter
Anjum, Tehmina
Adkins, Steve W.
Title Genetic structure of invasive weed Parthenium hysterophorus in Australia and Pakistan
Formatted title
Genetic structure of invasive weed Parthenium hysterophorus in Australia and Pakistan
Journal name International Journal of Agriculture and Biology   Check publisher's open access policy
ISSN 1560-8530
Publication date 2015
Year available 2015
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 17
Issue 2
Start page 327
End page 333
Total pages 7
Place of publication Faisalabad, Pakistan
Publisher Friends Science Publishers
Collection year 2016
Language eng
Formatted abstract
Understanding the patterns of genetic structure in the introduced range of invasive species can help elucidate invasion histories
and levels of gene flow among populations. Parthenium weed (Parthenium hysterophorus L.; PW) is native to the Gulf of
Mexico and central South America but has become globally invasive during the last three decades and little is known about the
genetics of this species in its invasive range. The present study was conducted to determine the genetic structure of 95
individual samples from 11 populations (9 from Pakistan and 2 from Australia) of PW using ISSR fingerprinting. A total of 30
ISSR primers were screened; of which eight were selected due to their high polymorphism and reproducibility. In toto 147
bands were amplified, which ranged in size from 200-2000 bp; among which 97 were polymorphic. Genetic diversity within
the populations both from Pakistan and Australia ranged between 0.193-0.278. Approximately 18% of genetic variation
occurred among and 82% within populations. Principal Coordinate Analysis showed that within the 95 samples two groups
were present: one contained samples collected mainly from Pakistan and the second group included the Australian samples
along with two populations from Pakistan. Overall, there was limited gene flow among PW populations in Pakistan, although
the genetic diversity within populations was high. The degree of genetic variation inferred from various population diversity
measures can predict different events of founding populations, which have passed through complicated processes of invasion,
experiencing genetic bottlenecks. Taken together, results showed that PW in Pakistan is genetically heterogeneous and may
have been the result of multiple introductions.
Keyword Genetic diversity
Invasion histories
Genetic bottleneck
Multiple introductions
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2016 Collection
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Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
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