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. 2015 Oct 6;22:11. doi: 10.1186/s40709-015-0034-3

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© Xiao et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Linkage maps based on the reference genome. This was constructed with a total of 8664 SNPs (p < 0.01) which generated 4138 markers mapping 24 linkage groups (LGs) successfully with a total length of 1944.74 cM. The LGs distance ranged from 33.58 to 129.176 cM. Six LGs contained over 220 marker loci and for these LGs Haldane’s map unit is used while for other LGs we used Kosambi’s map unit. The LG09, LG23 and LG24 were the shortest LGs, spanning 73.937–107.485 cM, respectively, and comprising 65 loci, whereas LG05 was the longest LG, spanning 60.73 cM and containing 494 loci with a marker density of 0.123 cM/locus. The marker densities ranged from 0.117 cM/locus in LG12 to 1.679 cM/locus in LG23, resulting in an average distance of 0.712 cM between markers for the entire map