Karyological study of four species of wheat grass (Agropyron sp.).
Karyological study of four Agropyron species (A. desertorum, A. cristatum, A. pectinoforum and A. imbricatum) showed that these species were tetraploid (2n = 4x = 28) with the base number, x=7. In the studied cells ofA. desertrum, 28 chromosomes with 1 B chromosome and satellite on chromosomes 2 and 4 were exist. The number of chromosomes in studied cells of A. cristatum ranged between 28 and 31 without B chromosome and with satellite on chromosome 3 and 5. In the cells ofA. imbricatum that studied, 28 to 33 chromosomes with 1 to 3 B chromosomes and satellite on chromosome 7 were exist. The number of chromosomes in studied cells of A. pectinoforum ranged between 28 and 29 and 1 B chromosome and satellite on chromosome 3 were exist. Finally in the studded cells of four species 28-33 chromosomes were exist (the various forms ofaneuploid cells). One to three B chromosomes and chromosomes with satellites also observed in these species.
Asghari
A
A
Department of Crop Production and Breeding, Faculty of Agriculture, University of Mohaghegh Ardebili, Ardebil, Iran.
Agayev
Y
Y
Fathi
S A A
SA
D031702:Agropyron / Q000235:genetics*; D000818:Animals; D032461:Chromosomes, Plant / Q000235:genetics*; D007621:Karyotyping; D011003:Ploidies