The First Data Report about DNA Content of Some Representatives of the Genus Trapa L. from Primorye Territory

The article presents the results of measuring the DNA content by flow cytometry for 6 species of thegenus Trapa L.: Trapa manshurica Fler. (2C = 1.03 pg), T. hankensis Pshenn. (2C = 1.47 pg), T. incisa Siebold & Zucc.(2C = 0.83 pg), T. maximowiczii Korsh. (2C = 0.94 pg), T. pseudoincisa Nakai (2C = 2.18 pg). For T. japonica Fler. twocytotypes 1.12 and 2.07 pg. were identified. Thus, plant flow cytometry is a fast and efficient way to study representativesof the genus Trapa to look for variations in chromosome numbers and ploidy levels.