ArticleApplied and environmental microbiology2009
Ecological specialization in a spatially structured population of the thermophilic cyanobacterium Mastigocladus laminosus.
Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 44 citations in OpenAlex.
- Antarctic Geothermal Soils Exhibit an Absence of Regional Habitat Generalist Microorganisms.Environmental microbiology · 2025Article
- An improved protocol for metagenomic DNA isolation from low microbial biomass alkaline hot-spring sediments and soil samples.3 Biotech · 2024Article
- Cyanobacterial Community Structure and Isolates From Representative Hot Springs of Yunnan Province, China Using an Integrative Approach.Frontiers in microbiology · 2022Article
- Fischerella thermalis: a model organism to study thermophilic diazotrophy, photosynthesis and multicellularity in cyanobacteria.Extremophiles : life under extreme conditions · 2019Review
- Diurnal Changes in Active Carbon and Nitrogen Pathways Along the Temperature Gradient in Porcelana Hot Spring Microbial Mat.Frontiers in microbiology · 2018Article
- Differences in Temperature and Water Chemistry Shape Distinct Diversity Patterns in Thermophilic Microbial Communities.Applied and environmental microbiology · 2017Article
- Genomics of variation in nitrogen fixation activity in a population of the thermophilic cyanobacterium Mastigocladus laminosus.The ISME journal · 2017Article
- Temporal patterns of local adaptation in soil pseudomonads.Proceedings. Biological sciences · 2016Article
- The cyanobacterium Mastigocladus fulfills the nitrogen demand of a terrestrial hot spring microbial mat.The ISME journal · 2015Article
- Speedy speciation in a bacterial microcosm: new species can arise as frequently as adaptations within a species.The ISME journal · 2013Article
- Ecological divergence of a novel group of Chloroflexus strains along a geothermal gradient.Applied and environmental microbiology · 2013Article
- Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature.Extremophiles : life under extreme conditions · 2013Article
- Modeling the habitat range of phototrophs in yellowstone national park: toward the development of a comprehensive fitness landscape.Frontiers in microbiology · 2012Article
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Authors and funding
4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Laboratory evolution experiments suggest the potential for microbial populations to contribute significant ecological variation to ecosystems, yet the functional importance of genetic diversity within natural populations of microorganisms is largely unknown. Here, we investigated the distribution of genetic and phenotypic variation for a population of the cyanobacterium Mastigocladus laminosus distributed along the temperature gradient of White Creek, Yellowstone NP. A total of 153 laboratory strains were directly isolated from five sites with mean annual temperatures ranging between 39 and 54 degrees C. Genetic characterization at four nitrogen metabolism genes identified 15 closely related lineages in the population sample. These lineages were distributed nonrandomly along White Creek, but the observed geographic structure could not be explained by limited dispersal capabilities. Temperature performance experiments with six M. laminosus lineages that maximized their respective relative abundances at different positions along the gradient provided evidence for niche differentiation within the population. Niche differentiation included a tradeoff in performance at high and low temperatures, respectively. The physiological variation of these lineages in laboratory culture was generally well matched to the prevailing temperature conditions experienced by these organisms in situ. These results suggest that sympatric diversification along an ecological selection gradient can be a potent source of evolutionary innovation in microbial populations.
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