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Figure 2 | BMC Plant Biology

Figure 2

From: QTL meta-analysis provides a comprehensive view of loci controlling partial resistance to Aphanomyces euteichesin four sources of resistance in pea

Figure 2

Localization of individual QTL and meta-QTL for resistance and morphological traits onto the consensus marker map: linkage group I. Individual QTL and meta-QTL detected are represented on the right of each linkage group (LG) for resistance to A. euteiches and on the left of each LG for morphological and phenological traits. Marker names are indicated on the left of each LG of the consensus map. Genetic distances between markers are represented in cM Kosambi, according to Additional file 10. Each LG size is indicated in cM Kosambi at the bottom of the LG. LOD-1 confidence interval of initial QTL detected for resistance to A. euteiches from Puget x 90–2079, DSP x 90–2131, Baccara x PI180693 and Baccara x 552 RIL populations are indicated by yellow, blue, purple and green boxes, respectively. LOD-1 confidence interval of initial QTL detected for earliness and plant height are indicated by black bars. Names of initial QTL are coded according to RIL population, field environment and year, A. euteiches isolate and scoring criterion, as mentioned in Additional file 5 of this study and in Hamon et al.[46]. Redundant initial QTL which were not considered in the meta-analysis are indicated in hatched boxes. Main genomic regions comprising overlapping individual QTL are named “Ae-Ps” or “Aph” for resistance to A. euteiches according to [46] and [45], respectively, and “Flo-Ps” or “HT-Ps” for earliness and plant height, respectively. Meta-QTL are named “MQTL-Ae” and “MQTL-Morpho” for resistance to A. euteiches and morphological/phenological traits (earliness, plant height), respectively. Meta-QTLs highlighted in red correspond to the 7 main consistent genomic regions identified for resistance to A. euteiches (Table 3). Confidence intervals of meta-QTL are represented by grey and hatched boxes in the width of each LG for resistance to A. euteiches and morphological/phenological traits, respectively.

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