Sheng Sun,Marco A Coelho,Márcia David-Palma et al.
Sheng Sun et al.
While ascomycetes predominantly have a bipolar mating system with a single MAT locus determining the mating type of the cell, there are also species that possess silent MAT cassettes that enable mating-type switching during vegetative growth....In basidiomycetes, the ancestral mating system is tetrapolar, with two independent MAT loci (P/R and HD) collectively determining the mating type of the cell....Some species, however, have a bipolar mating system in which the P/R and HD loci have become completely linked genetically or even fused together, while others exhibit a so-called pseudobipolar mating system in which only partial genetic linkage has been established between the P/R and HD loci.
A Chromosome-Scale Genome Assembly of the Flax Rust Fungus Reveals the Two Unusually Large Effector Proteins, AvrM3 and AvrN [0.03%]
基于黄花锈病菌的染色体基因组测序揭示了两个效应蛋白AvrM3和AvrN
Jana Sperschneider,Jian Chen,Claire Anderson et al.
Jana Sperschneider et al.
We locate the genes linked to the tetrapolar mating system on chromosomes 4 and 9, but in contrast to the cereal rusts which have one pheromone receptor gene per haplotype, in flax rust three pheromone receptor genes are found with two of them closely linked on one haplotype.
Maternal quality, paternal effects, and sibling interactions influence seed size in the eelgrass, Zostera marina [0.03%]
母体质量、父本效应和同胞相互作用影响海底草(Zostera marina)的种子大小
Lauren R Sgambelluri,Jessie C Jarvis,Stephanie J Kamel
Lauren R Sgambelluri
As such, life-history and mating system shifts, resulting from environmental stressors, may result in changes in seed size and number, with important implications for population stability and productivity.
Undescribed species diversity in Brewer's jewelflower illuminates potential mechanisms of diversification associated with serpentine endemism [0.03%]
博比特草属中的未知物种多样性揭示了与蛇纹岩特有性相关分化机制的潜在作用
Kyle Christie,N Ivalú Cacho,Jacob Macdonald et al.
Kyle Christie et al.
We assessed reproductive isolation resulting from flowering time differences, mating system differences, and interfertility among four distinct geographic clusters of S. breweri that span the geographic range of the species.
Christine A Nalepa,Nathan Lo,Kiyoto Maekawa
Christine A Nalepa
We propose that any genetic monogamy detected in incipient colonies of extant termites may be a consequence, rather than a cause of the initial transition to eusociality; if so, it is a derived mating system that may be a fitness cost in termite evolution.
Gene expression and pollen performance indicate altered postmating selection between Solanum species with different mating systems [0.03%]
不同的交配系统物种的基因表达和花粉表现暗示后交配选择的不同
Timothy J Biewer-Heisler,Matthew J S Gibson,Emily Sornay et al.
Timothy J Biewer-Heisler et al.
Despite this, the effect of mating system transitions, and attendant shifts in the intensity of sexual selection, on specific PMPZ traits and loci is still poorly understood.
Mating-system evolution in predominantly haploid species. a commentary on Clo et al. (2025) [0.03%]
关于丛等人的评论：单倍体为主的物种的交配系统进化（2025）
Bart Nieuwenhuis,Stuart F McDaniel
Bart Nieuwenhuis
Thomas Brazier,Roman Stetsenko,Denis Roze et al.
Thomas Brazier et al.
To test for the impact of the mating system on the evolution of recombination rates, we leveraged a dataset with genetic maps, genome sizes, chromosome numbers, and life history traits in 200 seed plant species....After controlling for the chromosome size effect, the phylogeny, and map quality, we found a joint positive effect of the mating system and longevity on recombination rates, with higher recombination rates in mixed-mating and selfing species....Our results point to the mating system as an important factor potentially shaping the evolution of recombination despite mechanical constraints acting on the number of crossovers per chromosome.
Analysis of the genetic diversity of the soybean rust pathogen Phakopsora pachyrhizi reveals two major evolutionary lineages [0.03%]
大豆锈病原菌Phakopsora pachyrhizi 的遗传多样性分析发现两大进化谱系
Vinicius Delgado da Rocha,Everton Geraldo Capote Ferreira,Fernanda Machado Castanho et al.
Vinicius Delgado da Rocha et al.
Our findings support a probable tetrapolar mating system in P. pachyrhizi.
Michelle Liu,Avery Chambers,Braidy Chambers et al.
Michelle Liu et al.
Previous studies of its mating system have used microsatellite loci, but low allelic diversity, particularly in self-compatible populations characterized by low levels of outcrossing, reduces the utility of these markers for more detailed studies.
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