Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

6.5K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.5K
Trihybrid Crosses02:27

Trihybrid Crosses

23.4K
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...
23.4K
Dihybrid Crosses01:18

Dihybrid Crosses

75.0K
Overview
75.0K
Frequency-dependent Selection01:21

Frequency-dependent Selection

22.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.0K
Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

19.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.0K
Types of Selection01:46

Types of Selection

40.5K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
40.5K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Historical shifts and ecological patterns: rethinking genome size evolution in Coffea L.

Journal of evolutionary biology·2026
Same author

From root to result: Portable NIRS-based non-destructive prediction of cassava quality traits.

PloS one·2025
Same author

Near-Infrared Spectroscopy Prediction of Dry Matter and Starch Content in Cassava Using Optimized Calibration Models.

Journal of food science·2025
Same author

Complete genome sequence of a novel alphanucleorhabdovirus infecting cassava (Manihot esculenta Crantz) in Brazil.

Archives of virology·2025
Same author

Historic manioc genomes illuminate maintenance of diversity under long-lived clonal cultivation.

Science (New York, N.Y.)·2025
Same author

Assessing the role of genotype by environment interaction as determinants of maize grain yield and lodging resistance.

BMC plant biology·2025

相关实验视频

Updated: Jul 11, 2025

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform
06:28

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Published on: June 7, 2024

1.8K

在多种环境中进行多特征选择,以提高木基因型的性能和稳定性.

Juraci Souza Sampaio Filho1, Tiago Olivoto2, Marcos de Souza Campos3

  • 1Federal University of the Recôncavo da Bahia, Cruz das Almas, Bahia, Brazil.

Frontiers in plant science
|November 15, 2023
PubMed
概括

选择最佳的麻豆基因型需要考虑基因型与环境相互作用 (GEI). 这项研究确定了稳定和高产的麻瓜品种,改善了新鲜根产量和干物质含量.

关键词:
马尼霍特 (Manihot esculenta) 是克兰茨 (Crantz) 的一种葡萄酒.这是一种繁殖繁殖.基因型与环境的相互作用.这是一个混合模型混合模型.稳定的稳定性 稳定的稳定性

更多相关视频

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

11.6K
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

18.8K

相关实验视频

Last Updated: Jul 11, 2025

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform
06:28

Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform

Published on: June 7, 2024

1.8K
A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

11.6K
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

18.8K

科学领域:

  • 农业科学 农业科学
  • 植物育种 植物育种
  • 遗传学 是一个遗传学.

背景情况:

  • 基因型-环境相互作用 (GEI) 由于偏见的遗传估计,使选择优质麻豆基因型变得复杂.
  • 考虑到产量和稳定性,同时改善多个特征对于有效的育种计划至关重要.

研究的目的:

  • 评估基因变异和GEI对新鲜根产量 (FRY) 和麻豆的其他关键特征的影响.
  • 为繁殖计划确定稳定和高性能麻豆基因型.

主要方法:

  • 使用线性混合模型,包括平均性能和稳定性 (MPS) 和多特征平均性能和稳定性指数 (MTMPS).
  • 在巴西,使用随机的完整块设计,在47个环境 (年份x位置) 中评估了22种麻豆基因型.
  • 分析了遗传变异,GEI变异,遗传性,并使用回归变异指数 (例如,RMSE) 来进行选择.

主要成果:

  • 高GEI变异 () 表明了基因型与环境对特征表达的显著影响.
  • 广义遗传率平均为0.37的初级特征和0.44的二级特征.
  • 基因型BRS新地平线和BR11-34-69显示出FRY的希望,而BRS新地平线和BR12-107-002则以干物质含量而闻名. MTMPS确定了七种稳定的基因型.

结论:

  • GEI显著影响麻的特征表达,需要在基因型选择中考虑稳定性.
  • 结合稳定性和生产率的方法提高了对新种麻豆品种的建议的可靠性.
  • BRS Novo Horizonte和其他已识别的基因型对未来的麻豆育种计划有价值,旨在提高产量和稳定性.