A high-density consensus map of barley linking DArT markers to SSR, RFLP and STS loci and agricultural traits

BMC Genomics

Table 4 Comparison between the JoinMap/perl consensus map and three alternative synthetic maps built with PhenoMap.

	Base map
	Steptoe/Morex	Yerong/Franklin	Selected by PhenoMap^a
Correlation between locus positions in synthetic maps and locus positions in the consensus map ^b
Mean ± SD	0.996 ± 0.004	0.992 ± 0.014	0.995 ± 0.006
Range	0.988–0.998	0.959–0.998	0.982–0.998
Chromosome lengths in synthetic maps as a percentage of the lengths in the consensus map ^b
Mean ± SD	98.7 ± 9.4%	103.9 ± 8.4%	96.5 ± 6.2%
Range	79.1–108.8%	95.2–119.2%	86.0–103.2%

^a The base (reference) maps selected by PhenoMap were: Clipper/Sahara (1H), Yerong/Franklin (2H), Clipper/Sahara (3H), Dayton/Zhepi2 (4H), Barque-73/CPI71284-48 (5H, 6H) and Dayton/Zhepi2 (7H).
^b The values reported are averages across chromosomes. Eighty-five loci not assayed in the seven populations used to construct the synthetic maps (Table 3) were removed from the JoinMap/perl consensus map before the comparison.

ISSN: 1471-2164