scholarly journals The soil microbial community alters patterns of selection on flowering time and fitness‐related traits in Ipomoea purpurea

2020 ◽  
Vol 107 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Lindsay Chaney ◽  
Regina S. Baucom
Keyword(s):  
Microbial Community ◽  
Flowering Time ◽  
Soil Microbial Community ◽  
Soil Microbial ◽  
Ipomoea Purpurea

scholarly journals The soil microbial community alters patterns of selection on flowering time and fitness related traits in Ipomoea purpurea

2019 ◽  
Author(s):  
Lindsay Chaney ◽  
Regina S. Baucom
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Flowering Time ◽  
Soil Microbial Community ◽  
Soil Microbial Communities ◽  
Morning Glory ◽  
Evolutionary Processes ◽  
Soil Microbial ◽  
Ipomoea Purpurea ◽  
Evolutionary Response

ABSTRACTPremise of the studyPlant flowering time plays an important role in plant fitness and thus evolutionary processes. Soil microbial communities are diverse and have a large impact, both positive and negative, on the host plant. However, owing to few available studies, how the soil microbial community may influence the evolutionary response of plant populations is not well understood. Here we sought to uncover if below-ground microbial communities act as an agent of selection on flowering and growth traits in the common morning glory, Ipomoea purpurea.MethodsWe performed a controlled greenhouse experiment in which genetic lines of I. purpurea were planted into either sterilized soils, or soils that were sterilized and re-inoculated with the microbial community from original field soil. This allowed us to directly test the influence of alterations to the microbial community on plant growth, flowering, and fitness, as well as assess patterns of selection in both soil microbial environments.ResultsWe found that a more complex soil microbial community resulted in larger plants that produced more flowers. Selection strongly favored earlier flowering when plants were grown in the complex microbial environment than compared to sterilized soil. Additionally, we uncovered a pattern of negative correlational selection on growth rate and flowering time, indicating that selection favored different combinations of growth and flowering traits in the simplified versus complex soil community.ConclusionsTogether these results suggest the soil microbial community is a selective agent on flowering time and ultimately that soil microbial community influences important plant evolutionary processes.

Soil microbial community response to nitrogen and phosphorous fertilization in a temperate forest nursery

2018 ◽  
Vol 51 (2) ◽  
Author(s):  
Muhammad Razaq ◽  
Muhammad Sajjad Haider ◽  
Salah Uddin ◽  
Liu Chunping ◽  
Hai-Long Shen ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Microbial Community ◽  
Temperate Forest ◽  
Community Response ◽  
Forest Nursery ◽  
Soil Microbial

Dynamics of a Soil Microbial Community under Spring Wheat

2002 ◽  
Vol 66 (3) ◽  
pp. 826 ◽  
Author(s):  
Søren O. Petersen ◽  
Pamela S. Frohne ◽  
Ann C. Kennedy
Keyword(s):  
Microbial Community ◽  
Spring Wheat ◽  
Soil Microbial Community ◽  
Soil Microbial
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