Neale Lab

Current status: Garth et al (2001) describes earlier comparative mapping between Slash pine and Loblolly pine. Dudley Huber (University of Florida) is working towards the creation of a SNP based Slash pine genetic map. The only mapping information available from UF is the mapping of a BC1 with slash as the recurrent and loblolly pine as the donor parent. But the mapping information for two full-sib families should be available starting in the summer of 2010, after which comparative mapping can be carried out.

• Linkage Groups 1 and 2
• Linkage Groups 3 and 4
• Linkage Groups 5 and 6
• Linkage Groups 7 and 8
• Linkage Groups 9 and 10
• Linkage Group 11+

Current status: The early work of comparative mapping between Loblolly Pine and Maritime Pine was documented by Chagne et al. 2003. More recently, Dr. Maria T. Cervera (INIA, Spain) is working on the creation of updated genetic maps of Maritime Pine using INRA and INIA progenies.

• Linkage Groups 1 through 6
• Linkage Groups 7 through 12

Current status: EST based genetic maps were compared between the Loblolly Pine and Scots Pine in earlier work (Komulainen et al 2003). Currently, Outi Savolainen\'s group in Oulu University, Finland is carrying out work in regards to creation of a genetic map with SNP markers updated onto the Scots pine maps. Currently, the genotyping of the parents and 86 progeny of this mapping population is being carried out. 768 SNP markers are placed in the array, some proportion of these are expected to be added to this map.

• Linkage Groups 1 through 3
• Linkage Groups 4 through 6
• Linkage Groups 7 through 9

Current status: Douglas fir (Pseudotsuga menziesii) is a fir species from the Pinaceae family.

The best work carried out with Douglas fir in terms of comparative mapping was that carried out earlier with EST and STS markers (Krutovsky et al. 2004). Though the SNP markers were identified from the CRSP (Comparative Re-Sequencing in Pinaceae) project, the amount of eligible markers was not substantial.

• Linkage Groups 1 and 2
• Linkage Groups 3 and 4
• Linkage Groups 5 and 6
• Linkage Groups 7 and 8
• Linkage Groups 9 and 10
• Linkage Groups 11 and 12

Current status: Earlier mapping efforts have been carried out in Norway spruce (Scotti et al 2005). Marta Scalfi (IASMA, Italy) used 83 trees from the Pendula cross population (P289 x E477 - obtained from Placerville,CA) to create an updated genetic map for Norway Spruce using the SNP markers from the CRSP project. The crossing strategy used is the double pseudo test-cross strategy. Linkage analysis is expected to be in progress.

Current status: Sugar Pine (Pinus lambertiana) is a species from the Genus: Pinus but is of a subgenus: Strobus. This is mainly attributed to the fact that Sugar pine trees are soft pine trees. Earlier comparative mapping was carried out with the Sugar pine genetic maps having the ESTP markers (Garth et al. 2001).

More recent work regarding the creation of genetic maps for Sugar pine have the SNP markers incorporated into them. Kathleen Jermstad (IFGR-Placerville, CA) has created the Sugar pine genetic map using three mapping populations, namely- Tree 5701, Tree 6000 and a QTL sex-averaged population.

Current status: A genetic linkage map for Monterey Pine (P. Radiata) (Devey et al 1996) was previously developed, consisting of RAPD, RFPL and SSR markers. Since publication of the genetic map, additional microsatelites were screened across a proportion of the individuals in the original map. Shannon Dillon and her research group at CSIRO Forest Biosciences, Canberra has taken up the work of updating and increasing the resolution of the current map, the existing mapping pedigree will be genotyped with 384 SNP markers, identified from candidate gene re-sequencing efforts, and mapped into the existing framework of microsatelite markers.