A full saturated linkage map of<Emphasis Type="Italic"> Picea abies</Emphasis> including AFLP,SSR, ESTP, 5S rDNA and morphological markers |
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| Authors: | V?Acheré P?Faivre-Rampant S?Jeandroz G?Besnard T?Markussen A?Aragones M?Fladung E?Ritter Email author" target="_blank">J-M?FavreEmail author |
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| Institution: | (1) UMR INRA/UHP 1136, Tree-Microbe Interactions, Faculté des Sciences, Université Nancy I, BP 239, 54506 Vandoeuvre-lès-Nancy, France;(2) BFH, Federal Research Centre for Forestry and Forest Products, Institute for Forest Genetics and Forest Tree Breeding, Sieker Landstrasse 2, 22927 Grosshansdorf, Germany;(3) Instituto Vasco de Investigacion y Desarrollo Agrario, NEIKER, Apartado 46, 01080 Vitoria-Gasteiz, Spain |
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| Abstract: | Based on an F1 progeny of 73 individuals, two parental maps were constructed according to the double pseudo-test cross strategy. The paternal map contained 16 linkage groups for a total genetic length of 1,792 cM. The maternal map covered 1,920 cM, and consisted of 12 linkage groups. These parental maps were then integrated using 66 intercross markers. The resulting consensus map covered 2,035 cM and included 755 markers (661 AFLPs, 74 SSRs, 18 ESTPs, the 5S rDNA and the early cone formation trait) on 12 linkage groups, reflecting the haploid number of chromosomes of Picea abies. The average spacing between two adjacent markers was 2.6 cM. The presence of 39 of the SSR and/or ESTP markers from this consensus map on other published maps of different Picea and Pinus species allowed us to establish partial linkage group homologies across three P. abies maps (up to five common markers per linkage group). This first saturated linkage map of P. abies could be therefore used as a support for developing comparative genome mapping in conifers.Communicated by O. Savolainen |
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