Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Notes on fine-scale spatial distribution of three Cephalanthera species (Orchidaceae) that grow in sympatry in Korea: Implications for maintenance of species boundaries

동소적으로 서식하는 은대난초속 3종(난과)의 미세 공간 분포에 대한 참고 사항: 종의 경계 유지에 대한 암시

  • Chung, Mi Yoon (Division of Life Science and the Research Institute of Natural Science, Gyeongsang National University) ;
  • Lopez-Pujol, Jordi (BioC-GReB, Botanic Institute of Barcelona (IBB-CSIC-ICUB)) ;
  • Chung, Myong Gi (Division of Life Science and the Research Institute of Natural Science, Gyeongsang National University)
  • 정미윤 (경상대학교 생명과학부 및 기초과학연구소) ;
  • ;
  • 정명기 (경상대학교 생명과학부 및 기초과학연구소)
  • Received : 2017.11.19
  • Accepted : 2017.12.13
  • Published : 2017.12.30
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Abstract

The three self-compatible, terrestrial orchids Cephalanthera erecta, C. falcata, and C. longibracteata flower synchronously in sympatric populations. Cephalanthera erecta and C. longibracteata, which have white flowers that do not fully open, are predominantly autogamous, whereas the food-deceptive C. falcata, whose bright yellow flowers open completely, is predominantly outcrossing. The formation of hybrids rarely occurs between species owing to strong prepollination barriers (floral isolation). If these three species have evolved toward the prevention of interspecific hybridization, we can expect that the spatial distribution patterns of the three species would be characterized as spatial segregation (i.e., 'spatial repulsion') from each other. To test this prediction, we studied the three Cephalanthera species in sympatric populations showing coincident flowering within Yeonwhasan Provincial Park (YPP, Gyeongsangnam Province, South Korea). We found strong spatial aggregation in each population and spatial independence in the interspecific spatial distribution, differing from previous studies. We further hypothesize that Cephalanthera species in sympatry within YPP are distributed somewhat randomly in space, perhaps due to the sharing of similar mycorrhizal fungi.

자가화합성이고 3종의 육상 난초인 은난초, 금난초, 은대난초가 간혹 동소적 개체군들에서 동시에 개화한다. 흰꽃이 완전히 열리지 않는 은난초와 은대난초는 주로 자가수분하며, 밝은 노란색 꽃이 완전히 열리는 금난초는 꽃 내 먹이가 존재하는 듯 속이는 방법으로 곤충을 유인하면서 타가교배한다. 잡종의 형성은 강한 수분 장벽(꽃간의 구조적 격리) 때문에 종간에 거의 일어나지 않는다. 만약 이 들 3종이 종간 잡종화의 방지로 진화하였다면, 저자들은 3 종의 공간 분포 양상이 서로 공간적으로 분리(즉, '공간적 반발') 될 것으로 기대할 수 있다. 이 예측을 검증하기 위해 한국의 경상남도 연화산군립공원 내 동소적집단에서 동시개화하는 3 종류의 은대난초 종의 공간적 분포를 연구하였다. 각각 개체군에서는 개체들이 공간적으로 강하게 뭉쳐 있으나, 종 간에서는 이들이 공간적으로 서로 독립되어 있는 결과는 다른 종 들에서 보여준 기존 연구와 다르다. 저자들은 이들 은대난초속 종이 유사한 균근 형성 균류들을 공유함으로써 공간적으로 다소 무작위로 분포 해왔을 것이라는 가정을 제시한다.

Keywords

References

  1. Almiron, M. G. and E. Martinez Carretero. 2015. Interactions between Eriosyce villicumensis (Cactaceae) and shrubs: A study case in the hyper arid Monte desert of Argentina. Boletin de la Sociedad Argentina de Botanica 50: 61-70.
  2. Chung, M. Y. and M. G. Chung. 2015. Spatial and temporal variation on fruit set in Epipactis thunbergii (Orchidaceae) from southern Korea. Korean Journal of Plant Taxonomy 45: 353-361. https://doi.org/10.11110/kjpt.2015.45.4.353
  3. Chung, M. Y., J. D. Nason and M. G. Chung. 2004. Spatial genetic structure in populations of the terrestrial orchid Cephalanthera longibracteata (Orchidaceae). American Journal of Botany 91: 52-57. https://doi.org/10.3732/ajb.91.1.52
  4. Chung, M. Y., J. D. Nason and M. G. Chung. 2005. Patterns of hybridization and population genetic structure in the terrestrial orchids Liparis kumokiri and Liparis makinoana (Orchidaceae) in sympatric populations. Molecular Ecology 14: 4389-4402. https://doi.org/10.1111/j.1365-294X.2005.02738.x
  5. Diggle, P. J. 1983. Statistical Analysis of Spatial Point Patterns. Academic Press, London, 148 pp.
  6. Haase, P. 1995. Spatial pattern analysis in ecology based on Ripley's K-function: Introduction and methods of edge correction. Journal of Vegetation Science 6: 575-582. https://doi.org/10.2307/3236356
  7. Ito, A., A. Shoji, H. Akazaki, M. Matsumae, J. Yamazaki and T. Yukawa. 2016. Translation: Effect of hand pollination and bagging on seed propagation of Cephalanthera longifolia and C. falcata at an afforested reclaimed land. Journal of the Japanese Society of Revegetation Technology 42: 271-274. (in Japanese) https://doi.org/10.7211/jjsrt.42.271
  8. Jacquemyn, H., R. Brys, O. Honnay, I. Roldan-Ruiz, B. Lievens and T. Wiegand. 2012a. Nonrandom spatial structuring of orchids in a hybrid zone of three Orchis species. New Phytologist 193: 454-464. https://doi.org/10.1111/j.1469-8137.2011.03913.x
  9. Jacquemyn, H., R. Brys, B. Lievens and T. Wiegand. 2012b. Spatial variation in below-ground seed germination and divergent mycorrhizal associations correlate with spatial segregation of three co-occurring orchid species. Journal of Ecology 100: 1328-1337. https://doi.org/10.1111/j.1365-2745.2012.01998.x
  10. Jacquemyn, H., R. Brys, V. S. F. T. Merckx, M. Waud, B. Lievens and T. Wiegand. 2014. Coexisting orchid species have distinct mycorrhizal communities and display strong spatial segregation. New Phytologist 202: 616-627. https://doi.org/10.1111/nph.12640
  11. Jacquemyn, H., T. Wiegand, K. Vandepitte, R. Brys, I. Roldan- Ruiz and O. Honnay. 2009. Multigenerational analysis of spatial structure in the terrestrial, food-deceptive orchid Orchis mascula. Journal of Ecology 97: 206-216. https://doi.org/10.1111/j.1365-2745.2008.01464.x
  12. Jersakova, J. and T. Malinova. 2007. Spatial aspects of seed dispersal and seedling recruitment in orchids. New Phytologist 176: 237-241. https://doi.org/10.1111/j.1469-8137.2007.02223.x
  13. Kitamura, S., G. Murata and T. Koyama. 1986. Colored Illustrations of Herbaceous Plants of Japan. Hoikusha Publishing, Osaka, 165 pp. (in Japanese)
  14. Lee, W. B. and Y. S. Kim. 1986. A taxonomic study of the genus Cephalanthera in Korea. Korean Journal of Plant Taxonomy 16: 39-57. (in Korean) https://doi.org/10.11110/kjpt.1986.16.1.039
  15. McCormick, M. K., D. L. Taylor, K. Juhaszova, R. K. Burnett, D. F. Whigham and J. P. O'Neill. 2012. Limitations on orchid recruitment: not a simple picture. Molecular Ecology 21: 1511-1523. https://doi.org/10.1111/j.1365-294X.2012.05468.x
  16. McCormick, M. K., D. F. Whigham, J. P. O'Neill, J. J. Becker, S. Werner, H. N. Rasmussen, T. D. Bruns and D. L. Taylor. 2009. Abundance and distribution of Corallorhiza odontorhiza reflect variations in climate and ectomycorrhizae. Ecological Monographs 79: 619-635. https://doi.org/10.1890/08-0729.1
  17. McKendrick, S. L., J. R. Leake and D. J. Read. 2000. Symbiotic germination and development of myco-heterotrophic plants in nature: transfer of carbon from ectomycoorhizal Salix repens and Betula pendula to the orchid Corallorhiza trifida through shared hyphal connections. New Phytologist 145: 539-548. https://doi.org/10.1046/j.1469-8137.2000.00592.x
  18. Peakall, R. 1989. The unique pollination of Leporella fimbriata (Orchidaceae): pollination by pseudocopulating male ants (Myrmecia urens, Formicidae). Plant Systematics and Evolution 167: 137-148. https://doi.org/10.1007/BF00936402
  19. Rasmussen, H. N. and F. N. Rasmussen. 2009. Orchid mycorrhiza: implications of a mycophagous life cycle. Oikos 118: 334-345. https://doi.org/10.1111/j.1600-0706.2008.17116.x
  20. Smith, S. E. and D. J. Read. 2008. Mycorrhizal Symbiosis. Academic Press, Cambridge, 800 pp.
  21. Suetsugu, K., R. S. Naito, S. Fukushima, A. Kawakita and M. Kato. 2015. Pollination system and the effect of inflorescence size on fruit set in the deceptive orchid Cephalanthera falcata. Journal of Plant Research 128: 585-594. https://doi.org/10.1007/s10265-015-0716-9
  22. Tanaka, H. 1965. Pollination of three species belonging to Cephalanthera. Journal of Japanese Botany 40: 187-189.
  23. Wallace, L. E. 2006. Spatial genetic structure and frequency of interspecific hybridization in Platanthera aquilonis and P. dilatata (Orchidaceae) occurring in sympatry. American Journal of Botany 93: 1001-1009. https://doi.org/10.3732/ajb.93.7.1001
  24. Wiegand, K., J. Florian and D. Ward. 2000. Do spatial effects play a role in the spatial distribution of desert-dwelling Acacia raddiana? Journal of Vegetation Science 11: 473-484. https://doi.org/10.2307/3246577
  25. Wiegand, T. 2003. PROGRAMITA, a software to perform point pattern analysis with Ripley's L and O-ring statistic. Retrieved Mar. 13, 2017, available from http://www.thorsten-wiegand.de/towi_programita.html.
  26. Wiegand, T., W. D. Kissling, P. A. Cipriotti and M. R. Aguiar. 2006. Extending point pattern analysis to objects of finite size and irregular shape. Journal of Ecology 94: 825-837. https://doi.org/10.1111/j.1365-2745.2006.01113.x
  27. Wiegand, T. and K. A. Moloney. 2004. Rings, circles, and nullmodels for point patternanalysis in ecology. Oikos 104: 209-229. https://doi.org/10.1111/j.0030-1299.2004.12497.x

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