Figure 1

Projections of QTLs and confidence interval positions on chromosome 3. Projections of 55 QTLs and confidence interval for various fiber traits on chromosome 3 (Figures for other chromosomes are shown in Additional file 3, Figure S1). Positions of putative QTLs (LOD > 2) and one-LOD drop off CI, as output data from QTL analysis with WinQTL Cartographer software, are projected on the Guazuncho-2 x VH8-4602, RIL-BC-consensus map. The QTL positions are arbitrarily centered (by the software) relative to the CI (input data). QTLs originate (i) from the 11 RIL experiments reported in this paper, (ii) from the 3 backcross generations reported in Lacape et al. [7] and re-analyzed using the consensus map and (iii) the fiber QTLs compiled in Rong et al. [16] that could be projected on the Guazuncho-2 x VH8-4602 consensus map. QTL nomenclature of RIL and BC data is a concatenation of the RIL experiment location (or BC generation), trait name, chromosome, rank on chromosome, LOD peak value and sign of additivity (shown in square brackets) relative to the Gh (Guazuncho-2) parent. The QTL name is bracketed when its LOD value is inferior to the permutation-based (1000) threshold but superior to LOD2. Names for other QTLs were kept as in their original reference [16]. Fiber quality categories comprise fiber length (grouping UHML, ML, UQLw), length uniformity (UI and SFI), fineness (H, Hs, MR and micronaire), color (Rd and + b), strength and elongation. Bars for QTLs of a given category on a given chromosome are filled in the same color, but colors may differ from one chromosome to the next (see color legends in Additional file 3, Figure S1).