Cytogenetic Characteristics of New Monosomic Stocks of Cotton (Gossypium hirsutum L.)

Table 2

Chromosome pairing at meiotic metaphase-I observed in PMCs and pollen fertility in the cotton desynaptic parental plants (DPPs) and their monosomics (Mo) progenies.

Material	Mo	Chromosome number	Chromosome associations				Pollen fertility
			Total number of cells	Number of univalents	Frequency of chromosome; associations (in average per cell)		Total number; of pollen; grains	Fertility, (%)
					univalents	bivalents
1609/66-DPP		52	60	2–12	4.77 ± 0.48	23.62 ± 0.24	656	70.12 ± 1.79
1609/66-22	Mo55	51	22	1–3	1.45 ± 0.18	24.77 ± 0.09	466	93.99 ± 1.10
1609/66-4	Mo69	51	33	1	1.00 ± 0.00	25.00 ± 0.00	499	98.27 ± 0.58
1063/63-13-DPP		52	42	2–28	14.33 ± 0.9	18.83 ± 0.45	405	65.68 ± 2.36
1063/63-133	Mo70	51	25	1–3	1.08 ± 0.08	24.96 ± 0.04	639	95.15 ± 0.85
1063/63-134	Mo71	51	24	1	1.00 ± 0.00	25.00 ± 0.00	352	96.02 ± 1.04
1063/63-135	Mo72	51	21	1	1.00 ± 0.00	25.00 ± 0.00	632	96.87 ± 0.69
1063/63-136	Mo73	51	30	1–3	1.47 ± 0.15	24.77 ± 0.08	612	98.53 ± 0.49
1570/149-3-DPP		52	42	2–8	2.43 ± 0.31	24.79 ± 0.15	440	94.09 ± 1.12
1570/149-318	Mo78	51	18	1	1.00 ± 0.00	25.00 ± 0.00	—	—
1570/149-13-DPP		52	15	2–6	2.67 ± 0.46	24.67 ± 0.23	467	95.29 ± 0.98
1570/149-137	Mo85	51	16	1	1.00 ± 0.00	25.00 ± 0.00	984	97.97 ± 0.45
179/2-DPP		52	32	2–8	2.50 ± 0.37	24.75 ± 0.19	157–537	2.61 ± 1.27–91.81 ± 1.18
179/212	Mo87	51	20	1	1.00 ± 0.00	25.00 ± 0.00	217–693	40.09 ± 3.33–92.93 ± 0.97
356/8-DPP		52	18	2	1.67 ± 0.18	25.17 ± 0.09	401	61.35 ± 2.43
356/85	Mo58	51	33	1–3	1.12 ± 0.08	24.94 ± 0.04	685	81.02 ± 1.50
356/86	Mo59	51	24	1	1.00 ± 0.00	25.00 ± 0.00	222–1292	2.25 ± 1.00–70.12 ± 1.27
356/87	Mo60	51	22	1	1.00 ± 0.00	25.00 ± 0.00	307	38.44 ± 2.78
356/88-unknown caryotype		—	—	—	—	—	452	53.98 ± 2.34
356/88-14	Mo79	51	22	1	1.00 ± 0.00	25.00 ± 0.00	666	92.94 ± 0.99
356/88-15	Mo80	51	20	1	1.00 ± 0.00	25.00 ± 0.00	447	99.78 ± 0.22
356/88-5	Mo84	51	39	1–3	1.41 ± 0.13	24.79 ± 0.07	322	98.14 ± 0.75
356/88-2	Mo91	51	19	1–3	1.11 ± 0.11	24.95 ± 0.05	65–726	53.85 ± 6.18–89.81 ± 1.12

DPP: desynaptic parental plants showed in bold-faced letters.