Table 1.

Length (μm) of rye chromosomes in mitotic metaphase (M) and pachytene (P), P/M ratio and centromere index (100 × short arm length/chromosome length) in wheat-rye additions.

Chromosome	M	P	P/M ratio	Centromere
				index
1R	14.2 ± 2.1	85.6 ± 5.3	6.0	37
2R	16.4 ± 3.4	111.1 ± 5.7	6.8	46
3R	15.3 ± 1.2	107.3 ± 12.0	7.0	46
4R	15.4 ± 0.6	172.8 ± 23.2	11.2	39
5R	12.9 ± 1.3	88.5 ± 15.2	6.9	33
6R	15.8 ± 2.5	102.6 ± 7.7	6.5	33
7R	15.7 ± 1.7	108.2 ± 9.4	7.0	45