Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico

Abstract Metagenomic and traditional paleolimnological approaches are suitable to infer past biological and environmental changes, however, they are often applied independently, especially in tropical regions. We combined both approaches to investigate Holocene Prokaryote and Eukaryote diversity and...

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Autores principales:	Bárbara Moguel, Liseth Pérez, Luis D. Alcaraz, Jazmín Blaz, Margarita Caballero, Israel Muñoz-Velasco, Arturo Becerra, Juan P. Laclette, Beatriz Ortega-Guerrero, Claudia S. Romero-Oliva, Luis Herrera-Estrella, Socorro Lozano-García
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d52295b99e1b4a91974cc15243ad056f
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spelling	oai:doaj.org-article:d52295b99e1b4a91974cc15243ad056f2021-12-02T15:22:56ZHolocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico10.1038/s41598-021-92981-82045-2322https://doaj.org/article/d52295b99e1b4a91974cc15243ad056f2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92981-8https://doaj.org/toc/2045-2322Abstract Metagenomic and traditional paleolimnological approaches are suitable to infer past biological and environmental changes, however, they are often applied independently, especially in tropical regions. We combined both approaches to investigate Holocene Prokaryote and Eukaryote diversity and microbial metabolic pathways in ancient Lake Chalco, Mexico. Here, we report on diversity among a large number of lineages (36,722 OTUs) and functional diversity (27,636,243 non-clustered predicted proteins, and 6,144 annotated protein-family genes). The most abundant domain is Bacteria (81%), followed by Archaea (15%) and Eukarya (3%). We also determined the diversity of protein families and their relationship to metabolic pathways. The early Holocene (> 11,000 cal years BP) lake was characterized by cool, freshwater conditions, which later became warmer and hyposaline (11,000–6,000 cal years BP). We found high abundances of cyanobacteria, and fungi groups associated with mature forests in these sediments. Bacteria and Archaea include mainly anaerobes and extremophiles that are involved in the sulfur, nitrogen, and carbon cycles. We found evidence for early human impacts, including landscape modifications and lake eutrophication, which began ~ 6,000 cal years BP. Subsaline, temperate conditions were inferred for the past 5,000 years. Finally, we found nitrogen-fixing bacteria and protein-family genes that are linked to contaminated environments, as well as several fungal pathogens of crops in near-surface sediments.Bárbara MoguelLiseth PérezLuis D. AlcarazJazmín BlazMargarita CaballeroIsrael Muñoz-VelascoArturo BecerraJuan P. LacletteBeatriz Ortega-GuerreroClaudia S. Romero-OlivaLuis Herrera-EstrellaSocorro Lozano-GarcíaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bárbara Moguel Liseth Pérez Luis D. Alcaraz Jazmín Blaz Margarita Caballero Israel Muñoz-Velasco Arturo Becerra Juan P. Laclette Beatriz Ortega-Guerrero Claudia S. Romero-Oliva Luis Herrera-Estrella Socorro Lozano-García Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
description	Abstract Metagenomic and traditional paleolimnological approaches are suitable to infer past biological and environmental changes, however, they are often applied independently, especially in tropical regions. We combined both approaches to investigate Holocene Prokaryote and Eukaryote diversity and microbial metabolic pathways in ancient Lake Chalco, Mexico. Here, we report on diversity among a large number of lineages (36,722 OTUs) and functional diversity (27,636,243 non-clustered predicted proteins, and 6,144 annotated protein-family genes). The most abundant domain is Bacteria (81%), followed by Archaea (15%) and Eukarya (3%). We also determined the diversity of protein families and their relationship to metabolic pathways. The early Holocene (> 11,000 cal years BP) lake was characterized by cool, freshwater conditions, which later became warmer and hyposaline (11,000–6,000 cal years BP). We found high abundances of cyanobacteria, and fungi groups associated with mature forests in these sediments. Bacteria and Archaea include mainly anaerobes and extremophiles that are involved in the sulfur, nitrogen, and carbon cycles. We found evidence for early human impacts, including landscape modifications and lake eutrophication, which began ~ 6,000 cal years BP. Subsaline, temperate conditions were inferred for the past 5,000 years. Finally, we found nitrogen-fixing bacteria and protein-family genes that are linked to contaminated environments, as well as several fungal pathogens of crops in near-surface sediments.
format	article
author	Bárbara Moguel Liseth Pérez Luis D. Alcaraz Jazmín Blaz Margarita Caballero Israel Muñoz-Velasco Arturo Becerra Juan P. Laclette Beatriz Ortega-Guerrero Claudia S. Romero-Oliva Luis Herrera-Estrella Socorro Lozano-García
author_facet	Bárbara Moguel Liseth Pérez Luis D. Alcaraz Jazmín Blaz Margarita Caballero Israel Muñoz-Velasco Arturo Becerra Juan P. Laclette Beatriz Ortega-Guerrero Claudia S. Romero-Oliva Luis Herrera-Estrella Socorro Lozano-García
author_sort	Bárbara Moguel
title	Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
title_short	Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
title_full	Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
title_fullStr	Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
title_full_unstemmed	Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico
title_sort	holocene life and microbiome profiling in ancient tropical lake chalco, mexico
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d52295b99e1b4a91974cc15243ad056f
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Holocene life and microbiome profiling in ancient tropical Lake Chalco, Mexico

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