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Linkage mapping using open-pollinated populations

Genomic mapping in forest trees is making fast progress. Several approaches have been employed for construction linkage maps for trees based on special features of the different species. Haploid megagametophyte tissue in the seeds, which is genetically identical with the maternal gamete, has been used to map individual mother tree for several conifer species. A pseudo-testcross strategy has been used to construct linkage maps using diploid tissues of full-sib population for Eucalyptus. Another approach to genomic mapping in trees has been to find appropriate 3-generation outbred pedigrees, where the 4 grandparents are available and the two parents can be crossed.


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Author(s): Ben-Hui Liu, Ronald R. Sederoff, David M. O'Malley

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1993

Section: Poster Session