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Title: Metagenomic survey of the bacterial communities in the rhizosphere of three andean tuber crops
Other Titles: 
Authors: Chica Martinez, Eduardo Jose
Villena Ochoa, Paulina Germania
Peña Tapia, Denisse Fabiola
Yarzabal Rodriguez, Luis Andres
Valdez Tenezaca, Adrian Vinicio
Buela, Lenys
metadata.dc.ucuenca.correspondencia: Yarzabal Rodriguez, Luis Andres, yarzabalandres@gmail.com
Keywords: Andean tuber crops
Rhizobacteria
16S rDNA
Rhizosphere microbiome
Taxonomic survey
Issue Date: 2019
metadata.dc.ucuenca.embargoend: 30-Dec-2050
metadata.dc.ucuenca.volumen: volumen 79, número 2
metadata.dc.source: Symbiosis
metadata.dc.identifier.doi: 10.1007/s13199-019-00631-5
metadata.dc.type: ARTÍCULO
Abstract: 
Microbes colonizing the rhizosphere are important drivers of plant health, supplying nutrients and antagonizing pathogens, among other beneficial activities. Tubers are important staple crops in the Andean highlands, produced by thousands of small-farmers and consumed by millions. Here we report the composition of the bacterial communities colonizing the rhizospheres of three Andean tuber crops (ATCs), namely oca (Oxalis tuberosa), ullucu (Ullucus tuberosus) and mashua (Tropaeolum tuberosum). We used high throughput sequence analysis of 16S rRNA genes to describe the bacterial diversity of rhizospheric soils associated to thee crops. Between 4862 and 5080 OTUs were exclusively detected in each one of the ATCs’ rhizospheres; the majority of the 100 most abundant OTUs belonged to the Bacteroidetes and Proteobacteria phyla. Beta diversity indices revealed a low similarity between the three communities, suggesting differences in their specific composition. Only 566 bacterial OTUs were shared by all three tuber’s rhizospheres and absent from the surrounding bulk soil. Apart from studies in potato, this is the first report concerning the diversity and abundance of bacterial taxa associated with the rhizosphere of other important and traditional ATCs.
Description: 
Microbes colonizing the rhizosphere are important drivers of plant health, supplying nutrients and antagonizing pathogens, among other beneficial activities. Tubers are important staple crops in the Andean highlands, produced by thousands of small-farmers and consumed by millions. Here we report the composition of the bacterial communities colonizing the rhizospheres of three Andean tuber crops (ATCs), namely oca (Oxalis tuberosa), ullucu (Ullucus tuberosus) and mashua (Tropaeolum tuberosum). We used high throughput sequence analysis of 16S rRNA genes to describe the bacterial diversity of rhizospheric soils associated to thee crops. Between 4862 and 5080 OTUs were exclusively detected in each one of the ATCs’ rhizospheres; the majority of the 100 most abundant OTUs belonged to the Bacteroidetes and Proteobacteria phyla. Beta diversity indices revealed a low similarity between the three communities, suggesting differences in their specific composition. Only 566 bacterial OTUs were shared by all three tuber’s rhizospheres and absent from the surrounding bulk soil. Apart from studies in potato, this is the first report concerning the diversity and abundance of bacterial taxa associated with the rhizosphere of other important and traditional ATCs.
URI: https://link.springer.com/article/10.1007%2Fs13199-019-00631-5
metadata.dc.ucuenca.urifuente: https://link.springer.com/journal/13199
ISSN: 0334-5114, e1878-7665
Appears in Collections:Artículos

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