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Genetic differentiation for size at first reproduction through male versus female functions in the widespread Mediterranean tree Pinus pinaster.

Abstract : The study represents the first report of genetic variability among populations for differences in the threshold size for first reproduction between male and female sexual functions in a tree species. The relatively uniform size at which individuals begin reproducing through their male function probably represents the fact that pollen dispersal is also relatively invariant among sites. However, the genetic variability in the timing of female reproduction probably reflects environment-dependent costs of cone production. The results also suggest that early sex allocation in this species might evolve under constraints that do not apply to other conifers.
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Submitted on : Friday, May 29, 2020 - 12:40:45 PM
Last modification on : Friday, October 8, 2021 - 11:54:10 AM

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L Santos-Del-Blanco, J Climent, Santiago C. González-Martínez, J. R. Pannell. Genetic differentiation for size at first reproduction through male versus female functions in the widespread Mediterranean tree Pinus pinaster.. Annals of Botany, Oxford University Press (OUP), 2012, 110 (7), pp.1449-1460. ⟨10.1093/aob/mcs210⟩. ⟨hal-02649889⟩

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