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ARS Home » Plains Area » Sidney, Montana » Northern Plains Agricultural Research Laboratory » Pest Management Research » Research » Publications at this Location » Publication #407131
Research Project: Biological Control and Habitat Restoration for Invasive Weed Management

Location: Pest Management Research

Title: Population structure of three invasive congeneric teasel (Dipsacus) species

Author
item GASKIN, JOHN - Retired ARS Employee
item West, Natalie
item Rector, Brian

Submitted to: Invasive Plant Science and Management
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/17/2024
Publication Date: 2/29/2024
Citation: Gaskin, J., West, N.M., Rector, B.G. 2024. Population structure of three invasive congeneric teasel (Dipsacus) species. Invasive Plant Science and Management. 17(1):37-45. https://doi.org/10.1017/inp.2024.5.
DOI: https://doi.org/10.1017/inp.2024.5

Interpretive Summary: Three species of Dipsacus are considered invasive plants, yet they may differ in how they spread and reproduce. Differences in invasion method may suggest that different management techniques are needed for each species. We performed genetic analyses on plants from the USA, Argentina and Eurasia with the goals of analyzing how they each reproduce and invade. We found D. sativus to be lowest in diversity and possibly relying on self-reproduction more than the other species D. fullonum and D. laciniatus. We found no evidence of hybridization within the invasions and no support for D. sativus as a subspecies of D. fullonum. This information regarding the three different species can help us understand their invasive processes as well as give insight into their management.

Technical Abstract: Three species of Dipsacus are considered invasive, yet they may differ in how they spread, reproduce and in genetic diversity. Differences in invasion method may suggest that different management techniques are needed for each species. We performed genetic analyses on 572 plants in 69 populations from the USA, Argentina and Eurasia with the goals of analyzing taxonomy, diversity, mode of reproduction, population structure and founding effect of each of these species’ invasions, as well as look for evidence of recent or ongoing hybridization. We found D. sativus to be lowest in diversity and possibly relying on self-reproduction more than the other species D. fullonum and D. laciniatus. We found no evidence of hybridization within the invasions and no support for D. sativus as a subspecies of D. fullonum. This information regarding the three different species can help us understand their invasive processes as well as give insight into their management.