United States Department of Agriculture

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***THIS IS A TESTING SITE ONLY.*** Please do not place germplasm orders on this site.

PLOIDY

Ploidy level determined either through flow cytometry or chromosome counting. See citations for additional details.

Trait(s) evaluated

Citation(s)

Santamour, F. S., Jr. & G. H. Ware. 1997. Chromosome numbers of new Ulmus (elm) taxa introduced from China. Rhodora 30(3):179-184.
Whittemore, A. T. & R. T. Olsen. 2011. Ulmus americana (Ulmaceae) is a polyploid complex. Amer. J. Bot. 54:1077-1079. DOI: 10.3732/ajb.1000372.
Whittemore, A. T. & Z.-L. Xia. 2017. Genome size variation in elms (Ulmus spp.) and related genera. HortScience 52(4):547-553. DOI: 10.21273/HORTSCI11432-16.