Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation [0.03%]
自交不亲和下孢子体倍性进化建立的机制研究
Diane Douet,Xavier Vekemans,Josselin Clo
Diane Douet
Polyploidy is widespread in plants, yet the establishment of neo-polyploids is limited by minority cytotype exclusion (MCE). As polyploidy has been associated with higher selfing rates in empirical studies, a shift from self-incompatibility...
Adaptive Benefits of Hybridization in Saccharomyces Yeast are Constrained by Genomic Background and Depend on Temperature [0.03%]
酿酒酵母杂交的适应性好处受基因组背景限制并取决于温度条件
Chloé Haberkorn,Noah Gettle,Jacob Elsen et al.
Chloé Haberkorn et al.
Climate change urges us to better understand and predict evolutionary responses to temperature shifts. Hybridization, by increasing genetic variation, can widen the range of adaptive responses and genetic mechanisms available to survive tem...
Behavior evolves as a correlated response to selection on cuticle color in Drosophila melanogaster and D. simulans [0.03%]
果蝇黑腹果蝇和D.simulans中行为作为角质层颜色选择的关联反应而演变
Sarah N Ruckman,Alexandra G Duffy,Paulina Montes Mendez et al.
Sarah N Ruckman et al.
To predict adaptive evolution, we need to understand the degree to which selection on one trait can constrain or redirect evolutionary responses in other traits. We used artificial selection on cuticle color in Drosophila melanogaster and D...
Parent-offspring conflict over sex determination in non-Mendelian systems [0.03%]
非 Mendelian 性别决定系统中亲子之间的性别之争
Thomas J Hitchcock,Robert B Baird
Thomas J Hitchcock
Across the tree of life, many organisms exhibit asymmetric inheritance systems in which males and females contribute differently to the long-term genetic future of the population. Although, in such groups, the sexes ultimately differ in the...
Effects of deleterious mutations on the fixation of chromosomal inversions on autosomes and sex chromosomes [0.03%]
有害突变对常染色体和性染色体倒位固定的影响
Denis Roze,Thomas Lenormand
Denis Roze
Deleterious mutations have multiple effects on the fate of chromosomal inversions. In this article, we use individual-based simulations to estimate the fixation probabilities of neutral inversions under a constant input of deleterious mutat...
Feeding ecology and allometry underlie distinct axes of mandible and leg evolution in tropical termites [0.03%]
食性生态和尺度依赖性决定了亚热带白蚁颌口和腿的演化方向
Felipe O Cerezer,Renato Almeida de Azevedo,José Wellington de Morais et al.
Felipe O Cerezer et al.
Understanding how ecological pressures and allometry contribute to morphological evolution remains a central goal in evolutionary biology. We examined mandible and leg shape in nearly 100 Amazonian termite species using geometric morphometr...
Clade-specific drivers of rapid vertebral evolution in squamate reptiles [0.03%]
有鳞目爬行动物快速脊椎演化的谱系特异性驱动因素
Natasha Stepanova,Hayley L Crowell,Daniel L Rabosky et al.
Natasha Stepanova et al.
In vertebrates, larger body length can evolve through two mechanisms: the addition of vertebrae (pleomerism) versus the enlargement of vertebrae (proportional change). These two processes have significant but distinct functional consequence...
Parasitic infection and resource acquisition shape senescence through oxidative stress and energy depletion [0.03%]
寄生感染和资源获取通过氧化应激和能量耗竭影响衰老过程
Jonathan I D Hamley,Daniel Sanchez-Taltavull,Jacob C Koella et al.
Jonathan I D Hamley et al.
There is currently no theory which mechanistically links parasite virulence and host senescence. One driver of senescence is energy metabolism. We expect parasites to contribute to senescence because infection increases energy allocation to...
"Nesting assistance": a new hypothesis for the evolution of polyandry and a test in an African foam-nesting treefrog [0.03%]
"巢穴协助"假说：非洲泡沫树蛙多雄繁殖进化的理论及检验研究
Phillip G Byrne,Martin J Whiting,Aimee J Silla et al.
Phillip G Byrne et al.
Why polyandry evolves remains a compelling evolutionary question. While numerous material benefits of polyandry have been demonstrated, there has been limited attempt to link the fitness of polyandrous females to nesting behavior. Here, we ...