Screening of 19.2 Mb of genomic sequence surrounding DArT markers associated to wood quality traits in Eucalyptus globulus

PAMELA V. VILLALBA; JANET HIGGINS; NATALIA C. AGUIRRE; CINTIA ACUÑA; GARCIA MARTIN N.; CAPPA EDUARDO PABLO; MARIA CAROLINA MARTINEZ; PABLO PATHAUER; HORACIO ESTEBAN HOPP; DARIO GRATTAPAGLIA; NORMA PANIEGO; SUSANA N. MARCUCCI POLTRI

Florence

Conferencia; IUFRO Tree Biotechnology Conference; 2015

Only associations for lignin related traits were found and no significant association could be detected for growth and form. Despite the low power of the association mapping population used, these results corroborate previous reports in Eucalyptus [5] indicating that growth related traits are considerably more complex and likely controlled by several hundred or thousands of small effect regions that will hardly be detected in its entirety, even using a very large mapping panel, likely following what has been recently shown for human height. Our results therefore suggest not only that lignin related traits are more tractable by GWAS, but also that genes with putative functions that are consistent with the measured traits can be detected providing clues for further molecular studies.