相关实验视频

Updated: Jun 21, 2025

Collection and Identification of Pollen from Honey Bee Colonies
08:11

Collection and Identification of Pollen from Honey Bee Colonies

Published on: January 19, 2021

7.2K

美国农业部的一个大型芝麻收藏的遗传多样性和人口结构

Damien Seay1, Aaron Szczepanek1, Gerald N De La Fuente2

  • 1US Arid Land Agricultural Research Center, USDA ARS, Maricopa, AZ 85138, USA.

Plants (Basel, Switzerland)
|July 13, 2024
PubMed
概括

研究人员对501个芝麻接入进行了基因定型,以探索遗传多样性和人口结构. 他们确定了24735个单核酸多态性 (SNP) 标记,揭示了两个不同的亚群,并为芝麻育种提供了工具.

关键词:
芝麻的印证L. L. 的时间.通过基因型测序 (GBS) 进行基因型测序.下一代测序单核酸多态 (SNP) 测序

更多相关视频

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections06:35

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

Published on: April 17, 2015

9.0K
Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support05:22

Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support

Published on: January 25, 2022

3.6K

相关概念视频

Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
58.3K
Genetic Variation01:25

Genetic Variation

Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles,...
273
Dihybrid Crosses01:18

Dihybrid Crosses

Overview
74.7K
What is Population Genetics?01:25

What is Population Genetics?

A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
57.9K
Genetic Drift03:33

Genetic Drift

Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
39.7K