Using Transferable Eucalypt Microsatellite Markers to Identify QTL for Resistance to Ceratocystis Wilt Disease in Eucalyptus pellita F. Muel. (Myrtales, Myrtaceae)

The deployment of Eucalyptus pellita trees that are resistant to Ceratocystis manginecans is essential for the commercial plantations and therefore sustainability forest industries in Southeast Asia utilize this resource. Current screening procedures time-consuming expensive but could be expedited with aid marker-assisted selection breeding. identification genotypes resistance disease may facilitated if microsatellite markers developed other species transferable can linked quantitative trait loci (QTL) resistance. This possibility was tested 111 full-sib progenies their parents by genotyping 49 species. Disease development assessed after stem inoculation C. isolate Am60C. index (DI) varied from 0 20% length. There a continuous distribution susceptible seedlings 60% category. Of 30 acceptable markers, 17 (56%) defined two linkage groups (LG). In each LG, one QTL significant logarithm odds (LODs > 13) identified. transferability rapid LGs QTLs E. pellita. To further refine map, testing more larger population required.