Table 1.

Biometrical parameters of individual QTLs affecting fiber-related traits of cotton

QTL	lod	% variation	a	d/a	Mode	lod at homeologous site
STR-D02	4.05	13.3	2.36	0.52	DA	0.68
STR-chr22	3.96	12.0	−2.12	−0.25	RA	0.45
STR-chr20	3.34	9.7	−1.31	1.42	D	0.02
SFCw-D03	3.23	14.7	−1.13	0.60	DA	0.22
Dn-chr10	3.03	12.6	−0.49	0.03	DA	NA
LnCV-chr15	3.44	14.9	2.09	1.24	D	0.95
LnCV-chr10	3.54	13.2	2.02	0.74	DA	NA
ELONG-D03	4.42	12.3	0.42	−0.49	RA	3.40
ELONG-A02	3.40	14.0	0.47	0.05	DA	4.42
LogSDCT-D07	4.12	12.3	−0.23	0.43	DA	0.68
LogSDCT-A02	3.10	6.4	−0.18	−0.00	RA	0.00
LB-chr23	4.67	54.1	−0.23	1.31	D	1.54
LB-chr25	3.07	7.9	0.02	−7.10	R	1.03
Sept12-D04	3.01	8.1	0.13	0.38	DA	1.15

NA, no homoeologous chromosome found for this region. Locus name includes trait abbreviation (see Fig. 1) and the linkage group/chromosome (chr). Chromosomes 1–13 belong to the A subgenome, and chromosomes 14–26 belong to the D subgenome. For “linkage groups” that have not yet been assigned to chromosomes, A and D followed by numbers, such as A02 and D03, represent linkage groups previously assigned to the respective subgenomes (15). Calculation of additive effects (a), dominance deviations (d), d/a ratios, and mode of gene action was as described (22). Modes of gene action that could not be deemed unlikely are listed in order of decreasing likelihood.