后代可能在他们的亲戚旁边很成功,但它需要特定的特征
Keliang Zhang1,2, Maud Deniau2, Vincent Jung2
1College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China.
Annals of botany
|October 8, 2024
概括
邻近树木的亲属关系影响哪些特征对树苗的成功很重要,而不是整体性能. 树通过根据邻居关系调整特征的重要性来适应不同的环境.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 植物科学 植物科学
背景情况:
- 关于后代是否在与远距离相关的 (更少的敌人) 或密切相关的 (更多的互利主义者) 成年人附近壮成长,存在争议.
- 这项研究调查了邻居关系如何影响后代的表现和基于特征的成功.
研究的目的:
- 测试成年邻居关系影响哪些特征赋予后代表现的假设,而不是表现本身.
- 了解不同邻居关系中树 (Quercus petraea和杂交树) 的特征-性能关系的作用.
主要方法:
- 在树中检查了种子去除,发芽和幼苗生长.
- 操纵后代密度,昆虫/真菌的存在,以及与相关/无关树的距离.
- 在不同的邻居关系条件下评估特征-性能关系.
主要成果:
- 邻居的遗传学距离对子女的整体表现的影响很小.
- 邻居的相关性显著改变了哪些特征 (种子/树苗大小,形状) 赋予了性能.
- 特征-表现关系在很大程度上是由生物相互作用 (昆虫,竞争者) 解释的,而不是环境因素或体育精的存在.
结论:
- 树通过生物微观马赛克选择,表现出灵活地适应不同的社区.
- 该物种可能保持了利基融合和分歧的潜力,从而影响了基因基因利基信号.
- 邻居的亲属关系塑造了树的适应性特征表达.
相关概念视频
Inclusive Fitness
35.9K
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
35.9K
Dihybrid Crosses
74.6K
Overview
74.6K
Law of Segregation
65.2K
When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
65.2K
Behavioral Genetics and Its Designs
337
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
337
Pedigree Analysis
84.1K
Overview
84.1K
Trihybrid Crosses
23.2K
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
23.2K


