Cultivated and wild pearl millet display contrasting patterns of abundance and co-occurrence in their root mycobiome.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
07 01 2022
07 01 2022
Historique:
received:
10
09
2021
accepted:
15
12
2021
entrez:
8
1
2022
pubmed:
9
1
2022
medline:
24
2
2022
Statut:
epublish
Résumé
Fungal communities associated with roots play a key role in nutrient uptake and in mitigating the abiotic and biotic stress of their host. In this study, we characterized the roots mycobiome of wild and cultivated pearl millet [Pennisetum glaucum (L.) R. Br., synonym: Cenchrus americanus (L.) Morrone] in three agro-ecological areas of Senegal following a rainfall gradient. We hypothesized that wild pearl millet could serve as a reservoir of endophytes for cultivated pearl millet. We therefore analyzed the soil factors influencing fungal community structure and whether cultivated and wild millet shared the same fungal communities. The fungal communities associated with pearl millet were significantly structured according to sites and plant type (wild vs cultivated). Besides, soil pH and phosphorus were the main factors influencing the fungal community structure. We observed a higher fungal diversity in cultivated compared to wild pearl millet. Interestingly, we detected higher relative abundance of putative pathotrophs, especially plant pathogen, in cultivated than in wild millet in semi-arid and semi-humid zones, and higher relative abundance of saprotrophs in wild millet in arid and semi-humid zones. A network analysis based on taxa co-occurrence patterns in the core mycobiome revealed that cultivated millet and wild relatives had dissimilar groups of hub taxa. The identification of the core mycobiome and hub taxa of cultivated and wild pearl millet could be an important step in developing microbiome engineering approaches for more sustainable management practices in pearl millet agroecosystems.
Identifiants
pubmed: 34997057
doi: 10.1038/s41598-021-04097-8
pii: 10.1038/s41598-021-04097-8
pmc: PMC8741948
doi:
Substances chimiques
DNA, Fungal
0
Soil
0
Phosphorus
27YLU75U4W
Types de publication
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
207Subventions
Organisme : United States Agency for International Development
ID : 929773554
Commentaires et corrections
Type : ErratumIn
Informations de copyright
© 2022. The Author(s).
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