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ARS Home » Plains Area » Sidney, Montana » Northern Plains Agricultural Research Laboratory » Pest Management Research » Research » Publications at this Location » Publication #347232
Research Project: Biological Control and Community Restoration Strategies for Invasive Weed Control in the Northern Great Plains Rangelands

Location: Pest Management Research

Title: Molecular diagnosis for a Tamarix species from two reclaimed lands along the Yellow Sea in Korea inferred from genome wide SNP markers

Author
item LEE, SOO-RANG - Hallym University
item Gaskin, John
item KIM, YOUNG-DONG - Hallym University

Submitted to: Journal of Systematics and Evolution
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/1/2018
Publication Date: 6/1/2018
Citation: Lee, S., Gaskin, J.F., Kim, Y. 2018. Molecular diagnosis for a Tamarix species from two reclaimed lands along the Yellow Sea in Korea inferred from genome wide SNP markers. Journal of Systematics and Evolution. https://doi.org/10.1111/jse.12432.
DOI: https://doi.org/10.1111/jse.12432

Interpretive Summary: The genus Tamarix from the Old World is a taxonomically challenging group that has widely expanded its range for the recent past. We examined genetic diversity pattern and the taxonomic identity of Korean Tamarix species whose taxonomy has remained unexplored. Results indicated that the two morphologically similar species Tamarix chinensis and T. ramosissima are genetically distinct and the two Korean populations are clustered closely with T. chinensis. These two species are also invasive in the USA.

Technical Abstract: The genus Tamarix L. from the Old World is a taxonomically challenging group that has widely expanded its range for the recent past. We examined genomic diversity pattern and the taxonomic identity of Korean Tamarix species whose taxonomy has remained unexplored. We used total of 1,773 SNP data retained from genotyping by sequencing for 40 Tamarix genotypes representing two species; T. chinensis and T. ramosissima to infer species delimitation and the geographic distribution of genomic diversity. STRUCTURE, PCA and neighbor joining results indicated that the two morphologically similar species Tamarix chinensis and T. ramosissima are genetically distinct and the two Korean populations are clustered closely with T. chinensis. A species tree inferred from SNAPP exhibited massive uncertainty about the phylogenetic relationships. The two Korean populations have diverged greatly for the past 20 years resulting in incongruence between geography and the pattern of genomic variation.