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Seed-related traits and their adaptive role in population differentiation in Avena sterilis along an aridity gradient

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Four populations of the annual grass Avena sterilis distributed along an aridity gradient in Israel (Mount Hermon, Northern Galilee, Shefela, and the Negev Desert), were studied to (1) reveal a general pattern of seed dormancy and persistence in the soil seed bank in this species; (2) compare seed size and demography of reciprocally introduced seeds and seedlings; and (3) test the adaptive nature of the observed patterns. The steep aridity gradient in Israel represents two parallel clines of environmental productivity (annual rainfall) and predictability (variation in amount and timing of annual rainfall). The four populations examined represented the following environments: (1) desert—low productivity and predictability, drought stress; (2) semi-steppe batha-moderate productivity and predictability; (3) grassland—high productivity and predictability; and (4) mountain—high productivity and predictability but with severe frost stress. The highest proportion of dormant seeds, most sequential germination of the first and the second florets of a spikelet over three years, and highest importance of desiccation tolerance were found at the desert location, consistent with bet-hedging buffering against unpredictability of rainfall and high probability of drought in this environment. Significant population origin by environment interactions were observed for yield and reproductive biomass, but no advantage of local ecotype was detected for these two traits. However, another fitness component, seedling survival, showed not only the interactive effect of origin and locality, but also the superiority of the local ecotype and decreasing fitness rank from indigenous ecotype towards the most environmentally dissimilar ecotype, suggesting local ecotype adaptation of seedlings. There was a genetically determined decrease in seed mass with increase in aridity without concomitant effect of frost. The selective forces that may differentially affect seed size along the aridity gradient are competition, predation intensity, importance of dispersal distance, and bet-hedging against rainfall unpredictability. Further experiments are needed to determine the precise nature of aridity-related evolution of seed size in A. sterilis.

Affiliations: 1: Department of Life Sciences, Ben-Gurion University of the Negev

10.1560/IJPS.57.1-2.79
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1. Aronson, J., Kigel, J., Shmida, A., Klein, J. 1992. Adaptive phenology of desert and Mediterranean populations of annual plants grown with and without water stress. Oecologia 89: 17-26.
2. Baum, B. R. 1977. Oats: wild and cultivated. Canada Department of Agriculture, Research Branch, Ottawa, Canada.
3. Bennington, C. C., McGraw, J. B. 1995. Natural selection and ecotypic differentiation in Impatiens pallida.Ecological Monographs 65: 303-323.
4. Bitan, A., Rubin, S. 1991. Climatic atlas of Israel for physical and environmental planning and design. Israeli Ministry of Transport, Jerusalem.
5. Bradshaw, A. 1965. Evolutionary significance of phenotypic plasticity in plants. Advances in Genetics 13: 115-155.
6. Cavieres, L. A., Arroyo, M. T. K. 2001. Persistent soil seed banks in Phacelia secunda (Hydrophyllaceae): experimental detection of variation along an altitudinal gradient in the Andes of central Chile (33°S). Journal of Ecology 89: 31-39.
7. Chapin, F. S., Chapin, M. C. 1981. Ecotypic differentiation of growth processes in Carex aquatilis along latitudinal and local gradients. Ecology 62: 1000-1009.
8. Cheplick, G. P., White, T. P. 2002. Saltwater spray as an agent of natural selection: no evidence of local adaptation within a coastal population of Triplasis purpurea (Poaceae). American Journal of Botany 89: 623-631.
9. Clausen, J., Keck, D. D., Hiesey, W. M. 1940. Experimental studies on the nature of species. I. Effect of varied environments on western North American plants. Carnegie Inst. Washington Publ. No. 520.
10. Clausen, J., Keck, D. D., Hiesey, W. M. 1948. Experimental studies on the nature of species. III. Environmental responses of climatic races of Achillea. Carnegie Inst. Washington Publ. No. 581.
11. Cohen, D. 1966. Optimizing reproduction in a randomly varying environment. Journal of Theoretical Biology 12: 119-129.
12. Ellner, S. 1987. Competition and dormancy: a reanalysis and review. American Naturalist 130: 798-803.
13. Etterson, J. R. 2004. Evolutionary potential of Chamaecrista fasciculata in relation to climate change. I. Clinal patterns of selection along an environmental gradient in the Great Plains. Evolution 58: 1446-1458.
14. Fritsche, F., Kaltz, O. 2000. Is the Prunella (Lamiaceae) hybrid zone structured by an environmental gradient? Evidence from a reciprocal transplant experiment. American Journal of Botany 87: 995-1003.
15. Gauthier, P., Lumaret, R., Bedecarrats, A. 1998. Ecotype differentiation and coexistence of two parapatric tetraploid subspecies of cocksfoot (Dactylis glomerata) in the Alps. New Phytologist 139: 741-750.
16. Gomez, J. M. 2004. Bigger is not always better: conflicting selective pressures on seed size in Quercus ilex.Evolution 58: 71-80.
17. Greenslade, P. J. M. 1983. Adversity selection and the habitat template. American Naturalist 122: 352-365.
18. Grime, J. P. 1977. Evidence for the existence of three primary strategies in plants and its relevance to ecological and evolutionary theory. American Naturalist 111: 1169-1194.
19. Gurevitch, J. 1992. Sources of variation in leaf shape among 2 populations of Achillea lanulosa.Genetics 130: 385-394.
20. Harlan, R. J., Zohary, D. 1966. Distribution of wild wheats and barley. Science 153: 1074-1080.
21. Housman, D. C., Price, M. V., Redak, R. A. 2002. Architecture of coastal and desert Encelia farinosa (Asteraceae): consequences of plastic and heritable variation in leaf characters. American Journal of Botany 89: 1303-1310.
22. Howe, H. F., Swallowed, J. 1982. Ecology of seed dispersal. Annual Review of Ecology and Systematics 13: 201-228.
23. Jordan, N. 1992. Path analysis of local adaptation in two ecotypes of the annual plant Diodia teres Walt. (Rubiaceae). American Naturalist 140: 149-165.
24. Kadmon, R., Danin, A. 1997. Floristic variation in Israel: a GIS analysis. Flora 192: 341-345.
25. Kerley, S. J. 2000. Changes in root morphology of white lupin (Lupinus albus L.) and its adaptation to soils with heterogeneous alkaline/acid profiles. Plant and Soil 218: 197-205.
26. Kindell, C. E., Winn, A. A., Miller, T. E. 1996. The effects of surrounding vegetation and transplant age on the detection of local adaptation in the perennial grass Aristida stricta.Journal of Ecology 84: 745-754.
27. Kittelson, P. M., Maron, J. L. 2001. Fine-scale genetically based differentiation of life-history traits in the perennial shrub Lupinus arboreus.Evolution 55: 2429-2438.
28. Latta, R. G., MacKenzie, J. L., Vats, A., Schoen, D. J. 2004. Divergence and variation of quantitative traits between allozyme genotypes of Avena barbata from contrasting habitats. Journal of Ecology 92: 57-71.
29. Leishman, M. R., Wright, I. J., Moles, A. T., Westoby, M. 2000. The evolutionary ecology of seed size. In: Fenner, M., ed. Seeds: the ecology of regeneration in plant communities. CAB Int., Wallingford, UK, pp. 31-57.
30. Leiss, K. A., Muller-Scharer, H. 2001. Performance of reciprocally sown populations of Senecio vulgaris from ruderal and agricultural habitats. Oecologia 128: 210-216.
31. Linhart, Y. B., Grant, M. C. 1996. Evolutionary significance of local genetic differentiation in plants. Annual Review of Ecology and Systematics 27: 237-277.
32. Lortie, C. J., Aarssen, L. W. 1996. The specialization hypothesis for phenotypic plasticity in plants. International Journal of Plant Sciences 157: 484-487.
33. Lovett Doust, L. 1981. Population dynamics and local specialization in a clonal perennial (Ranunculus repens): II. The dynamics of leaves, and a reciprocal transplant-replant experiment. Journal of Ecology 69: 757-768.
34. MacArthur, R. H., Wilson, E. D. 1967. The theory of island biogeography. Princeton University Press, Princeton, N. J.
35. Mazer, S. J., LeBuhn, G. 1999. Genetic variation in life-history traits: heritability estimates within and genetic differentiation among populations. In: Vuorisalo, T. O., Mutikainen, P. K., eds. Life history evolution in plants. Kluwer Academic Publishers, Dordrecht, the Netherlands.
36. Moegenburg, S. M. 1996. Sabal palmetto seed size: causes of variation, choice of predators, and consequences for seedlings. Oecologia 106: 539-543.
37. Nagy, E. S., Rice, K. J. 1997. Local adaptation in two subspecies of an annual plant: implications for migration and gene flow. Evolution 51: 1079-1089.
38. Nardini, A., Salleo, S., Lo Gullo, M. A., Pitt, F. 2000. Different responses to drought and freeze stress of Quercus ilex L. growing along a latitudinal gradient. Plant Ecology 148: 139-147.
39. Philippi, T. 1993. Bet-hedging germination of desert annuals: beyond the first year. American Naturalist 142: 474-487.
40. Pianka, E. R. 1970. On r and K selection. American Naturalist 104: 592-597.
41. Price, M. V., Joyner, J. W. 1997. What resources are available to desert granivores: seed rain or soil seed bank? Ecology 78: 764-773.
42. Reader, R. J. 1993. Control of seedling emergence by ground cover and seed predation in relation to seed mass for some old-field species. Journal of Ecology 81: 169-175.
43. Rees, M. 1996. Evolutionary ecology of seed dormancy and seed size. Philosophical Transactions of the Royal Society of London B 351: 1299-1308.
44. Rice, K. J., Mack, R. N. 1991. Ecological genetics of Bromus tectorum. I. A hierarchical analysis of phenotypic variation. Oecologia 88: 77-83.
45. Rodriguez-Girones, M. A., Sandsten, H., Santamaria, L. 2003. Asymmetric competition and the ev0olution of propagule size. Journal of Ecology 91: 554-562.
46. Sanchez Del Arco, M. J., Torner, C., Fernandez Quintanilla, C. 1995. Seed dynamics in populations of Avena sterilis ssp. ludoviciana.Weed Research 35: 477-487.
47. Seiwa, K., Watanabe, A., Saitoh, T., Kanno, H., Akasaka, S. 2002. Effects of burying depth and seed size on seedling establishment of Japanese chestnuts, Castanea crenata.Forest Ecological Management 164: 149-156.
48. Taylor, D. R., Aarssen, L. W. 1988. An interpretation of phenotypic plasticity in Agropyron repens (Graminae). American Journal of Botany 75: 401-413.
49. Thompson, J. D., McNeilly, T., Gray, A. J. 1991. Population variation in Spartina anglica C. E. Hubbard. New Phytologist 117: 129-139.
50. Turesson, G. 1922. The genotypical response of the plant species to the habitat. Hereditas 3: 211-350.
51. Turnbull, L. A., Rees, M., Crawley, M. J. 1999. Seed mass and the competition/colonization trade-off: a sowing experiment. Journal of Ecology 87: 899-912.
52. Venable, D. L., Brown, J. S. 1988. The selective interactions of dispersal, dormancy, and seed size as adaptations for reducing risk in variable environments. American Naturalist 131: 360-384.
53. Volis, S. 2007. Correlated patterns of variation in phenology and seed production in populations of two annual grasses along an aridity gradient. Evolutionary Ecology 21: 381-393.
54. Volis, S., Mendlinger, S., Ward, D. 2002a. Adaptive traits of wild barley plants of Mediterranean and desert origin. Oecologia 133: 131-138.
55. Volis, S., Mendlinger, S., Ward, D. 2002b. Differentiation in populations of Hordeum spontaneum along a gradient of environmental productivity and predictability: life history and local adaptation. Biological Journal of the Linnean Society 77: 479-490.
56. Volis, S., Mendlinger, S., Ward, D. 2004. Demography and role of the seed bank in Mediterranean and desert populations of wild barley, Hordeum spontaneum Koch. Basic and Applied Ecology 5: 53-64.
57. Wang, H., McArthur, E. D., Sanderson, S. C., Graham, J. H., Freeman, D. C. 1997. Narrow hybrid zone between two subspecies of big sagebrush (Artemisia tridentata: Asteraceae). IV. Reciprocal transplant experiments. Evolution 51: 95-102.
58. Zohary, D. 1983. Wild genetic resources of crops in Israel. Israel Journal of Botany 32: 97-127.
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/content/journals/10.1560/ijps.57.1-2.79
2009-05-18
2018-09-22

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