Correlation analysis between arbuscular mycorrhizal fungal community and host plant phylogeny

doi:10.17521/cjpe.2015.0037

Abstract

Abstract: Aims

The objective of this study was to understand how arbuscular mycorrhizal (AM) fungal community would vary with plant evolution.

Methods

Data-mining was carried out against MaarjAM database with ribosomal small subunit (SSU) gene. We predicted that the richness of root-associated AM fungal species increases from lower to higher modern land plants. Totally, 188 host plant species were selected in this analysis.

Important findings

The AM fungal species richness increased with the divergence of host plant species, and significantly differed among plant phylogenetic groups. The more recently diverged host plants (i.e. gymnosperms and angiosperms) harbored higher AM fungal species richness, whereas the earlier-originated plants (liverworts, hornworts and ferns) possessed lower AM fungal species richness. The myco-heterotrophytes in angiosperms showed similarly low richness of AM fungal species to the lower plants. In addition, the AM fungal community composition significantly differed among different plant phylogenetic groups. Findings in this study provided some indirect evidence that AM fungal communities varied with plant evolution. It is suggested that plants might maintain the most effective AM fungi but discard those inefficient ones during evolution.

Key words: arbuscular mycorrhizal fungi, host-specificity, diversity, evolution

YANG Hai-Shui,WANG Qi,GUO Yi,XIONG Yan-Qin,XU Ming-Min,DAI Ya-Jun. Correlation analysis between arbuscular mycorrhizal fungal community and host plant phylogeny[J]. Chin J Plan Ecolo, 2015, 39(4): 383-387.

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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2015.0037

https://www.plant-ecology.com/EN/Y2015/V39/I4/383

Figures/Tables 4

Fig. 1 Relationship between the time of divergence of hosts (MYA, million year) and the richness of arbuscular mycorrhizal fungal (AMF) species in roots.

Fig. 2 Distribution of species richness of arbuscular mycorrhizal fungi (AMF) in different plant phylogenetic groups (mean ± SE). Different lowercase letters indicate significant differences among different plant phylogenetic groups (p < 0.05). D, dicotyledons; M, monocotyledons.

Fig. 3 Non-metric multidimensional scaling (NMDS) analysis of arbuscular mycorrhizal fungal community composition in different phylogenetic groups. D, dicotyledons; M, monocotyledons.

Table 1 One-way NPMANOVA of arbuscular mycorrhizal fungal community composition in different phylogenetic groups of host plants

	L	H	F	G	NPM	M	NPD	D
L	-	0.02	<0.01	0.46	<0.01	<0.01	<0.01	<0.01
H		-	0.02	0.02	0.01	<0.01	<0.01	<0.01
F			-	0.07	0.01	<0.01	<0.01	<0.01
G				-	0.21	0.58	<0.01	0.68
NPM					-	<0.01	<0.01	<0.01
M						-	<0.01	0.94
NPD							-	<0.01
D								-

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