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Trees

, Volume 27, Issue 6, pp 1813–1819 | Cite as

Clonal variation for shoot ontogenetic heteroblasty in maritime pine (Pinus pinaster Ait.)

  • Jose ClimentEmail author
  • Angelo Kidelman Dantas
  • Ricardo Alia
  • Juan Majada
Short Communication

Abstract

Pine seedling shoots undergo sharp heteroblastic changes during the early ontogenetic stages. The rate of these changes has been seen to vary between species and provenances within species, but there is a marked lack of information about its genetic control at the lower hierarchical levels. We used clonal replicates of maritime pine to determine broad-sense heritability of shoot ontogenetic heteroblasty and its correlation to rooting ability. We applied a simple ontogenetic index based on the proportion of basal nodes with secondary needles in rooted cuttings of 15 clones from 9 environmentally contrasting origins. We found a high clonal heritability for shoot ontogenetic index and a moderately high heritability for rooting ability, but both genetic and phenotypic correlations between these two traits were weak and non-significant. These results indicate that both developmental phenomena are genetically controlled, but not strictly associated in this species.

Keywords

Development Genetic correlation Heritability Rooting ability Vegetative phase change Vegetative propagation 

Notes

Acknowledgments

This research was co-supported with projects AT07-002 of INIA and RTA2010-00120-C02-02 and RTA2011-00016-00-00. We thank the staff at Serida’s facilities in Villaviciosa (Asturias, Spain) for technical support.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Jose Climent
    • 1
    • 2
    Email author
  • Angelo Kidelman Dantas
    • 3
  • Ricardo Alia
    • 1
    • 2
  • Juan Majada
    • 3
  1. 1.INIA-CIFOR, Forest Research CentreMadridSpain
  2. 2.Sustainable Forest Management Research Institute UVa-INIAMadridSpain
  3. 3.Forest SectionSERIDAGradoSpain

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