Comparative genomics of Rhizophagus irregularis, R. cerebriforme, R. diaphanus and Gigaspora rosea highlights specific genetic features in Glomeromycotina

被引：112

作者：

Morin, Emmanuelle ^{[1
]}

Miyauchi, Shingo ^{[1
]}

San Clemente, Helene ^{[2
]}

Chen, Eric C. H. ^{[3
]}

Pelin, Adrian ^{[3
]}

de la Providencia, Ivan ^{[3
]}

Ndikumana, Steve ^{[3
]}

Beaudet, Denis ^{[3
]}

Hainaut, Mathieu ^{[4
]}

Drula, Elodie ^{[4
]}

Kuo, Alan ^{[5
]}

Tang, Nianwu ^{[2
]}

Roy, Sebastien ^{[6
]}

Viala, Julie ^{[6
]}

Henrissat, Bernard ^{[4
,7
]}

Grigoriev, Igor V. ^{[5
]}

Corradi, Nicolas ^{[3
]}

Roux, Christophe ^{[2
]}

Martin, Francis M. ^{[1
,8
]}

机构：

[1] Univ Lorraine, Inst Natl Rech Agron, Unite Mixte Rech Interact Arbres Microorganismes, Ctr INRA Grand Est Nancy, F-54280 Champenoux, France

[2] Univ Toulouse, UPS, CNRS, Lab Rech Sci Vegetales, 24 Chemin Borde Rouge Auzeville, F-31320 Castanet Tolosan, France

[3] Univ Ottawa, Dept Biol, Ottawa, ON K1N 6N5, Canada

[4] Aix Marseille Univ, CNRS, UMR 7257, F-13007 Marseille, France

[5] US DOE, JGI, Walnut Creek, CA 94598 USA

[6] Immeuble BIOSTEP, Agronutr Rue Pierre & Marie Curie, F-31670 Labege, France

[7] Aix Marseille Univ, Architecture & Fonct Macromol Biol, F-13007 Marseille, France

[8] Beijing Forest Univ, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Beijing 100080, Peoples R China

来源：

NEW PHYTOLOGIST | 2019年 / 222卷 / 03期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

arbuscular mycorrhizal fungi; carbohydrate-active enzymes; fungal evolution; interspecific variation; protein kinases; transposable elements; ARBUSCULAR MYCORRHIZAL FUNGI; OBLIGATE; CLASSIFICATION; SYMBIOSIS; ALIGNMENT; PROTEINS; TOOL;

D O I：

10.1111/nph.15687

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Glomeromycotina is a lineage of early diverging fungi that establish arbuscular mycorrhizal (AM) symbiosis with land plants. Despite their major ecological role, the genetic basis of their obligate mutualism remains largely unknown, hindering our understanding of their evolution and biology. We compared the genomes of Glomerales (Rhizophagus irregularis, Rhizophagus diaphanus, Rhizophagus cerebriforme) and Diversisporales (Gigaspora rosea) species, together with those of saprotrophic Mucoromycota, to identify gene families and processes associated with these lineages and to understand the molecular underpinning of their symbiotic lifestyle. Genomic features in Glomeromycotina appear to be very similar with a very high content in transposons and protein-coding genes, extensive duplications of protein kinase genes, and loss of genes coding for lignocellulose degradation, thiamin biosynthesis and cytosolic fatty acid synthase. Most symbiosis-related genes in R. irregularis and G. rosea are specific to Glomeromycotina. We also confirmed that the present species have a homokaryotic genome organisation. The high interspecific diversity of Glomeromycotina gene repertoires, affecting all known protein domains, as well as symbiosis-related orphan genes, may explain the known adaptation of Glomeromycotina to a wide range of environmental settings. Our findings contribute to an increasingly detailed portrait of genomic features defining the biology of AM fungi.

引用

页码：1584 / 1598

页数：15

共 59 条

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