Lineage-Specific Genes and Cryptic Sex: Parallels and Differences between Arbuscular Mycorrhizal Fungi and Fungal Pathogens

被引：23
作者：
Reinhardt, Didier [1 ]
Roux, Christophe [2 ]
Corradi, Nicolas [3 ]
Di Pietro, Antonio [4 ]
机构：
[1] Univ Fribourg, Dept Biol, Fribourg, Switzerland
[2] Univ Toulouse, Lab Rech Sci Vegetales, CNRS, UPS, F-31326 Castanet Tolosan, France
[3] Univ Ottawa, Dept Biol, Ottawa, ON, Canada
[4] Univ Cordoba, Dept Genet, E-14071 Cordoba, Spain
来源：
TRENDS IN PLANT SCIENCE | 2021年 / 26卷 / 02期
关键词：
FUSARIUM-OXYSPORUM; EVOLUTION; GENOME; RECOMBINATION; DIVERSITY; PROTEINS; POPULATION; TRADEOFFS; GENETICS; EXCHANGE;
D O I：
10.1016/j.tplants.2020.09.006
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Arbuscular mycorrhizal fungi (AMF) live as obligate root symbionts on almost all land plants. They have long been regarded as ancient asexuals that have propagated clonally for millions of years. However, genomic studies in Rhizophagus irregularis and other AMF revealed many features indicative of sex. Surprisingly, comparative genomics of conspecific isolates of R. irregularis revealed an unexpected interstrain diversity, suggesting that AMF carry a high number of lineage-specific (LS) genes. Intriguingly, cryptic sex and LS genomic regions have previously been reported in a number of fungal pathogens of plants and humans. Here, we discuss these genomic similarities and highlight their potential relevance for AMF adaptation to the environment and for symbiotic functioning.
引用
收藏
页码：111 / 123
页数：13
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