Predicting the contribution of single trait evolution to rescuing a plant population from demographic impacts of climate change [0.03%]
预测单个性状进化对缓解气候变化种群数量影响贡献的模拟研究——以欧洲羽衣甘蓝为例
Diane R Campbell,John M Powers,Justin Kipness
Diane R Campbell
Evolutionary adaptation can allow a population to persist in the face of a new environmental challenge. With many populations now threatened by environmental change, it is important to understand whether this process of evolutionary rescue ...
Changes in flexibility but not in compactness underlie the thermal adaptation of prokaryotic adenylate kinases [0.03%]
变弛建模与分析揭示了原核腺苷酸激酶热适应的机制
Dimitrios-Georgios Kontopoulos,Ilias Patmanidis,Timothy G Barraclough et al.
Dimitrios-Georgios Kontopoulos et al.
Understanding the structural changes that enable enzymes to remain active in extreme thermal conditions is of broad scientific interest for both fundamental and applied biological research. Three key mechanisms that underlie the thermal ada...
Pleiotropy increases with gene age in six model multicellular eukaryotes [0.03%]
多细胞真核生物中的基因多效性随其“年龄”的增加而增大
Reese Martin,Ann T Tate
Reese Martin
Fundamental traits of genes, including function, length, and Guanine-Cytosine (GC) content, all vary with gene age. Pleiotropy, where a single gene affects multiple traits, arises through selection for novel traits and is expected to be rem...
Alignment across taxonomic levels in strategies rather than in traits along elevational gradients [0.03%]
策略而非性状的跨分类水平排序在海拔梯度上的对齐现象研究
Aaditya Narasimhan,Yvonne Willi
Aaditya Narasimhan
Trait variation along environmental gradients can indicate the different strategies that organisms have evolved in response to environmental heterogeneity. So far, many inferences on trait-environment associations come from global studies p...
Roberto García-Roa,Francisco Garcia-Gonzalez,Víctor Maroto et al.
Roberto García-Roa et al.
Sexual conflict frequently gives rise to adaptations that increase male reproductive success at the expense of harming females ("male harm") and decreasing population growth. Studying the ecology of male harm is paramount to understand how ...
Horizontal gene transfer, segregation loss, and the speed of microbial adaptation [0.03%]
基因水平转移、分离丢失与微生物适应速度
David V McLeod,Sylvain Gandon
David V McLeod
Microbial adaptation is driven by the circulation of mobile genetic elements (MGEs) among bacteria. On the one hand, MGEs can be viewed as selfish genes that spread like infectious diseases in a host population. On the other hand, the horiz...
Persistent maternal age effects on male offspring fitness traits in a wild mammal population [0.03%]
母体年龄对野生哺乳动物种群雄性后代适应特征的持久影响
Sanjana Ravindran,Kynan L Delaney,Xavier Bal et al.
Sanjana Ravindran et al.
Effects of parental age on juvenile survival are well documented, but whether parental age has long-term consequences for the fitness of surviving offspring remains poorly understood. This is particularly the case for polygynous mammals, wh...
Genetic divergence in population mean fitness is weakly associated with environmental and geographic distance in four prairie perennial forbs [0.03%]
四种草原多年生草本植物种群平均适合度的遗传分化与环境和地理距离弱相关
Anna R Peschel,Shelby A Flint,Georgiana May et al.
Anna R Peschel et al.
Plant propagules are frequently relocated between populations for restoration, especially in fragmented ecosystems like prairies, where few pristine patches remain. While research shows that plant populations often perform better in their n...
Diverging Arabidopsis populations quickly accumulate pollen-acting genetic incompatibilities [0.03%]
拟南芥分化群体快速积累花粉作用的生殖隔离基因型不相容性
Christopher Condon,Fantin Carpentier,Marie Tabourin et al.
Christopher Condon et al.
The process by which species diverge from one another, gradually accumulate genetic incompatibilities, and eventually reach full-fledged reproductive isolation is a key question in evolutionary biology. However, the nature of reproductive b...
Nicole Walasek,Karthik Panchanathan,Willem E Frankenhuis
Nicole Walasek
Reversible plasticity, i.e., the ability to deconstruct phenotypic specializations based on environmental conditions, is widespread in nature. Despite its ubiquity, few mathematical models have explored the evolutionary selection pressures ...