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Fertility and sexual structure in a polygamous willow population

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Abstract

This note reports on an extraordinary polygamous population of Salix acmophylla from Nahal Dishon, Israel. Remarkably, all individuals in this population are bisexuals, that is, they all contain typically female catkins (with some or without any male florets), typically male catkins (with some or without any female florets) and mixed catkins. The proportions of these three catkin types in populations are 36.3%, 46.8% and 16.9% respectively. The fertility of these willows was found to be poor: no mature seeds were found at all and mean pollen stainability was low as 15.6%. The possible reasons for this semi-sterility are discussed.

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References

  • Atlan A, Gouyon PH, Fornial T, Pomente D and Couvet D (1992). Sex allocation in an hermaphroditic plant: the case of gynodioecy in Thymus vulgaris L. J Evol Biol 5: 189–203

    Article  Google Scholar 

  • Browicz K and Zielinski J (1990). Chorology of trees and shrubs in South-West Asia and adjacent regions. vol 7. Polish Scientific, Warsaw-Poznan

    Google Scholar 

  • Burkill JH (1898). Changes in the sex of willows. Ann Bot 12: 557–558

    Google Scholar 

  • Charlesworth D and Charlesworth B (1981). Allocation of resources to male and female functions in hermaphrodites. Biol J Linn Soc 15: 57–74

    Article  Google Scholar 

  • Charnov EL, Maynard Smith J and Bull JJ (1976). Why be an hermaphrodite. Nature 263: 125–126

    Article  Google Scholar 

  • Darwin C (1877). The different forms of flowers on plants of the same species. John Murray, London

    Google Scholar 

  • Falinski JB (1998). Androgyny of individuals and polygamy in populations of Salix myrsinifolia Salisb. in the south-western part of its geographical range (NE-Poland). Persp Pl Ecol Evol Syst 1/2: 238–266

    Article  Google Scholar 

  • Heslop Harrison JW (1924). Sex in the Salicaceae and its modification by Eriphoyid mites and other influences. Br J Exp Biol 1: 445–472

    Google Scholar 

  • Rohwer JK and Kubitzki K (1984). Salix martiana, a regulary hermaphrodite willow. Pl Syst Evol 144: 99–101

    Article  Google Scholar 

  • Rottenberg A (2000). Fertility of exceptional bisexual individuals in four dioecious species. Sex Pl Reprod 12: 219–221

    Article  Google Scholar 

  • Rottenberg A, Zohary D and Nevo E (1999). Patterns of isozyme diversity and vegetative reproduction of willows in Israel. Int J Pl Sci 160: 561–566

    Article  CAS  Google Scholar 

  • Smith EC (1940). Sex expression in willows. Bot Gaz 101: 851–861

    Article  Google Scholar 

  • Wolfe LM and Shmida A (1997). The ecology of sex expresion in a gynodioecious Israeli desert shrub (Ochradenus baccatus). Ecology 78: 101–110

    Google Scholar 

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Correspondence to A. Rottenberg.

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Rottenberg, A. Fertility and sexual structure in a polygamous willow population. Plant Syst. Evol. 268, 257–260 (2007). https://doi.org/10.1007/s00606-007-0573-7

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  • DOI: https://doi.org/10.1007/s00606-007-0573-7

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