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Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera.

Publication ,  Journal Article
Lu, J; Magain, N; Miadlikowska, J; Coyle, JR; Truong, C; Lutzoni, F
Published in: American journal of botany
July 2018

Factors shaping spatiotemporal patterns of associations in mutualistic systems are poorly understood. We used the lichen-forming fungi Peltigera and their cyanobacterial partners Nostoc to investigate the spatial structure of this symbiosis at an intrabiome scale and to identify potential factors shaping these associations.Ninety-three thalli were sampled in Québec, Canada, along a south-north and an east-west transect of ~1300 km each. We identified the two main partners (Peltigera species and Nostoc phylogroups) using molecular markers and modeled the effects of environmental variables and partner occurrence on Peltigera-Nostoc distributions.Peltigera species showed a high degree of specialization toward cyanobionts, whereas two Nostoc phylogroups dominated both transects by associating with several Peltigera species. Peltigera species had narrower ranges than these two main cyanobionts. Distributions of three Peltigera species were highly associated with precipitation and temperature variables, which was not detected for Nostoc phylogroups at this spatial scale.For these cyanolichens, factors driving patterns of symbiotic associations are scale dependent. Contrary to global-scale findings, generalist Peltigera species were not more widespread within the boreal biome than specialists. Nostoc availability was not the only driver of Peltigera species' geographic ranges; environmental factors also contributed to their intrabiome distributions. Climatic conditions (especially precipitation) limited the range of some Peltigera species more than the range of their cyanobacterial partners at an intrabiome (boreal) scale.

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Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

July 2018

Volume

105

Issue

7

Start / End Page

1198 / 1211

Related Subject Headings

  • Symbiosis
  • Quebec
  • Lichens
  • Evolutionary Biology
  • Ascomycota
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology
 

Citation

APA
Chicago
ICMJE
MLA
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Lu, J., Magain, N., Miadlikowska, J., Coyle, J. R., Truong, C., & Lutzoni, F. (2018). Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera. American Journal of Botany, 105(7), 1198–1211. https://doi.org/10.1002/ajb2.1119
Lu, Jade, Nicolas Magain, Jolanta Miadlikowska, Jessica R. Coyle, Camille Truong, and François Lutzoni. “Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera.American Journal of Botany 105, no. 7 (July 2018): 1198–1211. https://doi.org/10.1002/ajb2.1119.
Lu J, Magain N, Miadlikowska J, Coyle JR, Truong C, Lutzoni F. Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera. American journal of botany. 2018 Jul;105(7):1198–211.
Lu, Jade, et al. “Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera.American Journal of Botany, vol. 105, no. 7, July 2018, pp. 1198–211. Epmc, doi:10.1002/ajb2.1119.
Lu J, Magain N, Miadlikowska J, Coyle JR, Truong C, Lutzoni F. Bioclimatic factors at an intrabiome scale are more limiting than cyanobiont availability for the lichen-forming genus Peltigera. American journal of botany. 2018 Jul;105(7):1198–1211.

Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

July 2018

Volume

105

Issue

7

Start / End Page

1198 / 1211

Related Subject Headings

  • Symbiosis
  • Quebec
  • Lichens
  • Evolutionary Biology
  • Ascomycota
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology