Sex allocation in inflorescences of the self-compatible Polygonatum verticillatum (Liliaceae)

  1. Javier Guitián 1
  2. Pablo Guitián 1
  1. 1 Department of Botany, Faculty of Biology, University of Santiago de Compostela.
Zeitschrift:
Mediterranean Botany

ISSN: 2603-9109

Datum der Publikation: 2022

Nummer: 43

Art: Artikel

DOI: 10.5209/MBOT.74346 DIALNET GOOGLE SCHOLAR lock_openOpen Access editor

Andere Publikationen in: Mediterranean Botany

Zusammenfassung

The modularity and sequential flower production in hermaphroditic plants enable them to modify sex allocation in response to biotic or abiotic environmental variation. To test three predictions derived from the relationship between sexual specialization and compatibility levels, we analyzed the breeding system (self-incompatibility) of Polygonatum verticillatum and the variation in sexual investment to stamens, ovules, pollen grains and P:O ratio among flowers at different positions of the inflorescence. Our results show that in self-compatible P. verticillatum sexual investment varies throughout the inflorescence with an increase in the number of pollen grains but does not show male specialization in top flowers, unlike other self-incompatible species of the genus previously studied. Comparative studies of the variation in floral sex allocation between taxonomically close species should contribute to a better interpretation of the relationships between sexual investment and the breeding system.

Bibliographische Referenzen

  • Brunet, J. 1992. Sex allocation in hermaphroditic plants. Trends Ecol. Evol. 7(3): 79–84. doi:10.1016/0169-5347(92)90245-7
  • Brunet,J. & Charlesworth,D. 1995. Floral sex allocation in sequentially blooming plants. Evolution 49(1): 70–79. doi:10.1111/j.1558-5646.1995.tb05959.x
  • Cao,G., Xue,L., Li,Y. & Pan,K. 2011. The relative importance of architecture and resource competition in allocation to pollen and ovule number within inflorescences of Hosta ventricosa varies with the resource pools. Ann. Bot. 107(8): 1413–1419. doi:10.1093/aob/mcr085
  • Charlesworth,D. 2006. Evolution of plant breeding systems. Curr. Biol. 16(17): R726–R735. doi:10.1016/j.cub.2006.07.068
  • Charlesworth,D. & Charlesworth,B. 1981. Allocation of resources to male and female functions in hermaphrodites. Biol. J. Linn. Soc. 15(1): 57–74. doi:10.1111/j.1095-8312.1981.tb00748.x
  • Charnov,E.L. 1982. The theory of sex allocation. Princeton University Press, New Jersey.
  • Cruden,R.W. 1977. Pollen-ovule ratios: a conservative indicator of breeding systems in flowering plants. Evolution 31: 32–46. doi:10.1111/j.1558-5646.1977.tb00979.x
  • Cruden,R.W. 2000. Pollen grains: Why so many? Plant Syst. Evol. 222(1): 143–165. doi:10.1007/BF00984100
  • De Jong,T.J., Waser,N.M. & Klinkhamer,P.G. 1993. Geitonogamy: The neglected side of selfing. Trends Ecol. Evol. 8(9): 321–325. doi:10.1016/0169-5347(93)90239-L
  • Delesalle,V.A. & Mazer,S.J. 2009. Size-dependent pollen: ovule ratios and the allometry of floral sex allocation in Clarkia (Onagraceae) taxa with contrasting mating systems. Am. J. Bot. 96(5): 968–978. doi:10.3732/ajb.0800039
  • Delesalle,V.A., Mazer,S.J. & Paz,H. 2008. Temporal variation in the pollen: ovule ratios of Clarkia (Onagraceae) taxa with contrasting mating systems: field populations. J. Evol. Biol. 21: 310–323. doi:10.1111/j.1420-9101.2007. 01444.x
  • Diggle,P.K. 1995. Architectural effects and the interpretation of patterns of fruit and seed development. Ann. Rev. Ecol. Syst. 26: 531–552.
  • Eckert,C.G. & Schaefer,A. 1998. Does self-pollination provide reproductive assurance in Aquilegia canadensis (Ranunculaceae)? Am. J. Bot. 85(7): 919–924. doi:10.2307/2446357
  • Erbar, C. & Langlotz, M. 2004. Pollen to ovule ratios: standard or variation-a compilation. Bot. Jahrb. Syst. 126: 71–132. doi:10.1127/0006-8152/2005/0126-0071
  • Goodwillie, C. & Weber, J.J. 2018. The best of both worlds? A review of delayed selfing in flowering plants. Am. J. Bot. 105(4): 641–655. doi:10.1002/ajb2.1045
  • Guitián,J., Guitián,P. & Medrano,M. 2001. Causes of fruit set variation in Polygonatum odoratum (Liliaceae). Plant Biol. 3(6): 637–641. doi:10.1055/s-2001-19369
  • Guitián,J., Medrano,M. & Oti,J.E. 2004. Variation in floral sex allocation in Polygonatum odoratum (Liliaceae). Ann. Bot. 94(3): 433–440. doi:10.1093/aob/mch163
  • IBM Corp. Released 2020. IBM SPSS Statistics Software for Windows, Version 27.0. Armonk, IBM Corp, New York.
  • Kosiński,I. 2012. Generative reproduction dynamics in populations of the perennial herb Polygonatum multiflorum (Asparagaceae). Ann. Bot. Fenn. 49(4): 217–228. doi:10.5735/085.049.0401
  • Liu, Y., Luo, M., Qin, M., Xie, G., Zhang, W., Chen, Q. & Li, N. 2017. Study on reproductive biology of Polygonatum cyrtonema Hua. J. Tradit. Chin. Med. 24: 71–74.
  • Lloyd,D.G. 1980. Sexual strategies in plants. New Phytol. 86(1): 69–79. doi:10.1111/j.1469-8137.1980.tb00780.x
  • Lloyd,D.G. & Webb,C.J. 1986. The avoidance of interference between the presentation of pollen and stigmas in angiosperms I. Dichogamy. N. Z. J. Bot. 24(1): 135–162. doi:10.1080/0028825X.1986.10409725
  • Mazer,S.J. & Delasalle,V.A. 1998. Contrasting variation within and covariation between gender-related traits in autogamous versus outcrossing species: alternative evolutionary predictions. Evol. Ecol. 12: 403–425. doi:10.1023/A:1006568704381
  • Mazer,S.J., Dudley,L.S., Delesalle,V.A., Paz,H. & Galusky,P. 2009. Stability of pollen-ovule ratios in pollinator-dependent versus autogamous Clarkia sister taxa: testing evolutionary predictions. New Phytol. 183(3): 630–648. doi:10.1111/j.1469-8137.2009.02886.x
  • Parachnowitsch, A.L. & Elle, E. 2004. Variation in sex allocation and male-female trade-offs in six populations of Collinsia parviflora (Scrophulariaceae S. L.). Am. J. Bot. 91(8): 1200–1207. doi:10.3732/ajb.91.8.1200
  • Ritland,C. & Ritland,K. 1989. Variation of sex allocation among eight taxa of the Mimulus guttatus species complex (Scrophulariaceae). Am. J. Bot. 76(12): 1731–1739. doi:10.2307/2444472
  • Routley, M.B., Bertin, R.I. & Husband, B.C. 2004. Correlated evolution of dichogamy and self-incompatibility: a phylogenetic perspective. Inter. J. Plant Sci. 165(6): 983–993. doi:10.1086/423881
  • Scalone, R., Kolf, M. & Albach, D.C. 2013. Mating system variation in Veronica (Plantaginaceae): inferences from pollen/ovule ratios and other reproductive traits. Nord. J. Bot. 31(3): 372–384. doi:10.1111/J.1756-1051.2012.01706.X
  • Schoen,D.J. 1982. Male reproductive effort and breeding system in a hermaphroditic plant. Oecologia, 53: 255–257. doi:10.1007/BF00545673
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