Memorias de investigación
Research Publications in journals:
Variation components in leaf morphology of recruits of two hybridising oaks [Q. petraea (Matt.) Liebl. and Q. pyrenaica Willd.] at small spatial scale
Year:2009

Research Areas
  • Ecology

Information
Abstract
Leaf morphological variation was examined in recruits of two hybridising oaks in a small sympatric area from Central Spain. Nuclear microsatellites were used to identify hybrids and assess the parental lineage. By Bayesian clustering analysis, 5% of hybrids were found. Principal component analysis was used to reduce 15 morphometric variables to four components associated with leaf size, lobation/pubescence and overall shape of the leaf. The percentage of variance due to genetic factors was evaluated through nested analysis of variance. As much as 70% of variance component was due to the factor ``species¿¿ for lobation/pubescence, suggesting high adaptive value for these traits, possibly related to ecological constraints of the species. The genetic component of variance for leaf size and overall shape of the leaf was below 33%. Age and height of the recruits did not correlate with sunleaf morphology. Competition indexes and diameter of the recruits showed slight, although significant, correlations with leaf size and lobation/pubescence components, pointing to some trade-offs between competition for light and leaf morphology of Q. petraea and Q. pyrenaica recruits.
International
Si
JCR
Si
Title
EUROPEAN JOURNAL OF FOREST RESEARCH
ISBN
1612-4669
Impact factor JCR
1,556
Impact info
Volume
128
10.1007/s10342-009-0302-6
Journal number
0
From page
543
To page
554
Month
NOVIEMBRE
Ranking
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
  • Departamento: Silvopascicultura