AN ESTIMATION OF THE GENOME LENGTH OF MARITIME PINE (PINUS-PINASTER AIT)

The genome length, in units of Morgans or centimorgans, is a fundament al feature of a species. It can be calculated from a complete linkage map. However, the genome size can be estimated with partial linkage da ta. Using linkage data obtained by the analysis of a two-dimensional e lectrophoresis of the proteins contained in an haploid organ, the mega gametophyte, we suggest an estimation and a confidence interval of the genome length of a gymnosperm, the maritime pine (Pinus pinaster Ait. ). The results indicate an important gap between the physical and the genetic maps.