Influence of Citrus Scion/Rootstock Genotypes on Arbuscular Mycorrhizal Community Composition under Controlled Environment Condition
Autor: | Zhiyong Pan, Fang Song, Juanjuan Wang, Yingchun Jiang, Fuxi Bai, Liming Wu |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
0301 basic medicine Plant Science Biology Root hair 01 natural sciences Article citrus Illumina Miseq sequencing Glomeromycota 03 medical and health sciences Symbiosis Genotype Cultivar scion/rootstock genotype Ecology Evolution Behavior and Systematics Glomus Ecology fungi Botany food and beverages biology.organism_classification Horticulture 030104 developmental biology AMF community composition QK1-989 PCoA Species richness Rootstock 010606 plant biology & botany |
Zdroj: | Plants Plants, Vol 9, Iss 901, p 901 (2020) Volume 9 Issue 7 |
ISSN: | 2223-7747 |
Popis: | Citrus is vegetatively propagated by grafting for commercial production, and most rootstock cultivars of citrus have scarce root hairs, thus heavily relying on mutualistic symbiosis with arbuscular mycorrhizal fungi (AMF) for mineral nutrient uptake. However, the AMF community composition, and its differences under different citrus scion/rootstock genotypes, were largely unknown. In this study, we investigated the citrus root-associated AMF diversity and richness, and assessed the influence of citrus scion/rootstock genotypes on the AMF community composition in a controlled condition, in order to exclude interferences from environmental factors and agricultural practices. As a result, a total of 613,408 Glomeromycota tags were detected in the citrus roots, and 46 AMF species were annotated against the MAARJAM database. Of these, 39 species belonged to Glomus, indicating a dominant role of the Glomus AMF in the symbiosis with citrus. PCoA analysis indicated that the AMF community&rsquo s composition was significantly impacted by both citrus scion and rootstock genotypes, but total samples were clustered according to rootstock genotype rather than scion genotype. In addition, AMF &alpha diversity was significantly affected merely by rootstock genotype. Thus, rootstock genotype might exert a greater impact on the AMF community than scion genotype. Taken together, this study provides a comprehensive insight into the AMF community in juvenile citrus plants, and reveals the important effects of citrus genotype on AMF community composition. |
Databáze: | OpenAIRE |
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