Genetic  and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa

Lynde L. Dodd; Nancy B. Rybicki; Ryan Thum; Yasuro Kadono; Kadiera Searfoss Ingram

Genetic and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa

Technical Report ERDC/EL TR-19-3

By: Lynde L. Dodd, Nancy B. Rybicki, Ryan Thum, Yasuro Kadono, and Kadiera Searfoss Ingram

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Abstract

This Special Report (SR) outlines preliminary work conducted under the Aquatic Plant Control Research Program (APCRP) to investigate genetic and morphological differences of Trapa taxa (water chestnut) in the Northeastern (NE) US. Comparisons of morphological characteristics and genetics were made between Trapa populations from the native region of Eurasia and Africa versus the NE US. Unpublished data suggests a new introduction of Trapa (herein referred to as Trapa sp.) has occurred in the Commonwealth of Virginia, US with unknown biology and life history. Observations of morphological and phenological characteristics of this potential new taxon of Trapa differ from those typically found with naturalized Trapa natans reported in the NE US. A better understanding of the biology and ecology of Trapa sp. is warranted to identify control strategies that would benefit water resource managers tasked with management of water chestnut.

Suggested Citation

Dodd, L.L., Rybicki, N.B., Thum, R., Kadono, Y., Ingram, K.S., 2019, Genetic and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa: Technical Report ERDC/EL TR-19-3, vii, 36 p.

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Additional publication details
Publication type	Report
Publication Subtype	Federal Government Series
Title	Genetic and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa
Series title	Technical Report
Series number	ERDC/EL TR-19-3
Year Published	2019
Language	English
Publisher	U.S. Army Corps of Engineers
Contributing office(s)	WMA - Earth System Processes Division
Description	vii, 36 p.
Country	Japan, South Africa, United States