c8.12.18 – Study of bud burst in a full-sib family of black poplar (Populus nigra L.)

Ludovisi R (1), Fabbrini F (1), Harfouche A (1), Gaudet M (1), Scarascia Mugnozza G (2), Sabatti M (1)

(1) Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), University of Tuscia, via S. Camillo de Lellis snc, 01100 Viterbo, Italy.; (2) Department of Agronomy, Forestry and Land use, Agricultural Research Council, Via del Caravita, 00186 Roma, Italy
Collocazione: c8.12.18 – Tipo Comunicazione: Poster
8° Congresso SISEF *
Sessione 12: “Poster” *

Contatto: Riccardo Ludovisi (rludovisi@unitus.it)

Abstract: Bud burst is a distinct adaptive trait of perennial plants during the seasonal growth cycle of trees. From the biological point of view, it is of high interest to pay more attention on all the process of bud burst rather than on single phases as has been previously done. For this purpose, a specific protocol has been developed to dissect the different phases of the process, from break of buds (phase 1) to leaf formation (phase 5), passing through intermediate stages. The aim of this study was also to improve our knowledge about the genetic control of the bud burst process in a full-sib family of black poplar (Populus nigra). Genetic variability and broad sense heritability were estimated for each phase of the process. The results have demonstrated the existence of important genotypic differences in the poplar full sib family. Although temperature is widely accepted to be the main environmental signal for bud burst in perennial plants, its influence on the dynamics of bud burst in poplar was monitored during the different phases in order to characterize the kinetics of the different phenological stages. These results provide new insights into the study of the bud burst phenology in poplar allowing QTLs (Quantitative Trait Loci) mapping associated to these traits.

Parole chiave: Populus Nigra, Bud Burst, Full Sib Family, Genetic Variability

Citazione: Ludovisi R , Fabbrini F , Harfouche A , Gaudet M , Scarascia Mugnozza G , Sabatti M (2011). Study of bud burst in a full-sib family of black poplar (Populus nigra L.) . 8° Congresso Nazionale SISEF, Rende (CS), 04 – 07 Ott 2011, Contributo no. #c8.12.18