Nov 9, 2018

Characterization and Variation of the Rhizosphere Fungal Community Structure of Cultivated Tetraploid Cotton

BioRxiv : the Preprint Server for Biology
Qinghua QiaoJun Zhang

Abstract

Rhizosphere fungal communities exert important influential forces on plant growth and health. However, information on the dynamics of the rhizosphere fungal community structure of the worldwide economic crop, cotton (Gossypium spp.), is limited. Next-generation sequencing of nuclear ribosomal internal transcribed spacer-1 (ITS1) was used to characterize the rhizosphere fungal communities of worldwide cultivated tetraploid cotton using G. hirsutum cv. TM-1 (upland cotton) and G. barbadense cv. Hai 7124 (island cotton). Plants were grown in field soil (FS) that had been continuously cropped with cotton and nutrient-rich soil (NS) that had not been cropped. Fungal species richness, diversity, and community composition were analyzed and compared among soil resources, cotton genotypes, and developmental stages. We found that the fungal community structure between the rhizosphere and bulk soil of cotton were different and the rhizosphere fungal communities were significantly varied between FS and NS. These results suggest that cotton rhizosphere fungal community structure variation was primarily determined by the interaction of cotton roots with different soil resources. We also found that the community composition of cotton rhizosph...Continue Reading

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Mentioned in this Paper

Gossypium barbadense
Research
Exertion
Crops, Agricultural
Penicillium hirsutum
Gossypium
Avian Crop
Nutrients
LUC7L3 gene
Massively-Parallel Sequencing

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