Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Ecosciences Precinct, Dutton Park, Queensland, Australia.
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, United States of America.
PLoS Pathog. 2022 May 26;18(5):e1010439. doi: 10.1371/journal.ppat.1010439. eCollection 2022 May.
Sexual reproduction, mutation, and reassortment of nuclei increase genotypic diversity in rust fungi. Sexual reproduction is inherent to rust fungi, coupled with their coevolved plant hosts in native pathosystems. Rust fungi are hypothesised to exchange nuclei by somatic hybridisation with an outcome of increased genotypic diversity, independent of sexual reproduction. We provide criteria to demonstrate whether somatic exchange has occurred, including knowledge of parental haplotypes and rejection of fertilisation in normal rust life cycles.
性生殖、突变和核重组增加了锈菌的基因型多样性。性生殖是锈菌固有的，与它们在原生病害系统中与其共同进化的植物宿主相耦合。锈菌被假设通过体细胞杂交交换核，从而产生增加的基因型多样性，而不依赖于有性生殖。我们提供了证明体细胞交换是否发生的标准，包括亲本单倍型的知识和对正常锈菌生命周期中受精的排斥。
