Geographical separation and physiology drive differentiation of microbial communities of two discrete populations of the bat Leptonycteris yerbabuenae
Por:
Gaona O, Cerqueda-García D, Moya A, Neri-Barrios X and Falcón LI
Publicada:
1 jun 2020
Ahead of Print:
1 mar 2020
Categoría:
Microbiology
Resumen:
In this paper, we explore how two discrete and geographically separated populations of the lesser long-nosed bat (Leptonycteris yerbabuenae)-one in central and the other in the Pacific region of Mexico-differ in their fecal microbiota composition. Considering the microbiota-host as a unity, in which extrinsic (as food availability and geography) or intrinsic factors (as physiology) play an important role in the microbiota composition, we would expect differentiation in the microbiota of two geographically separated populations. The Amplicon Sequences Variants (ASVs) of the V4 region of the 16s rRNA gene from 68 individuals were analyzed using alpha and beta diversity metrics. We obtained a total of 11 566 (ASVs). The bacterial communities in the Central and Pacific populations had a diversity of 6,939 and 4,088 ASVs, respectively, sharing a core microbiota of 539 ASVs accounting for 75% of the relative abundance, suggesting stability over evolutionary time. The Weighted UniFrac metrics tested by a PERMANOVA showed that lactating and pregnant females had significant beta diversity differences in the two populations compared with other reproductive stages. This could be a consequence of the increased energy requirements of these physiological stages, more than the variation due to geographical separation. In contrast, a positive correlation of the observed ASVs of fecal microbiota with the observed ASVs of plastids related to the diet was observed in the juveniles and adults, suggesting that in these physiological stages an extrinsic factor as the diet shapes the microbiota composition. The results provide a baseline for future studies of the microbiome in these two wild populations of the lesser long-nosed bat, the main pollinator of the Agaves from which the beverages tequila and mezcal are made.
Filiaciones:
Gaona O:
Posgrado en Ciencias Biológicas de la Universidad Nacional Autonóma de México, Instituto de Ecología, UNAM, Mexico City, Mexico
Laboratorio de Ecología Bacteriana, Instituto de Ecología, Universidad Nacional Autonóma de México, UNAM Parque Científico y Tecnológico de Yucatán, Mérida, Mexico
Cerqueda-García D:
Consorcio de Investigación del Golfo de México (CIGOM), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Mérida, Mexico
:
Instituto de Biología Integrativa de Sistemas, Universidad de Valencia y Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Espana. Área de Genómica y Salud. Fisabio.
Neri-Barrios X:
Laboratorio de Ecología Bacteriana, Instituto de Ecología, Universidad Nacional Autonóma de México, UNAM Parque Científico y Tecnológico de Yucatán, Mérida, Mexico
Falcón LI:
Laboratorio de Ecología Bacteriana, Instituto de Ecología, Universidad Nacional Autonóma de México, UNAM Parque Científico y Tecnológico de Yucatán, Mérida, Mexico
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