相关实验视频

Updated: Jul 2, 2025

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

染色体进化,环境异质性和迁移驱动了Calochortus (百合植物) 中物种丰富性的空间模式

Nisa Karimi1,2, Christopher P Krieg2, Daniel Spalink3

  • 1Science and Conservation Division, Missouri Botanical Garden, St. Louis, MO 63110.

Proceedings of the National Academy of Sciences of the United States of America
|February 23, 2024
PubMed
概括

在Calochortus花的物种丰富性是由染色体数量变化和多样化的息地驱动的. 进化过程和地理重叠解释了这些物种如何在北美西部共存.

关键词:
加利福尼亚州的花科省.多样化的多样化多样化的多样化环境的异质性 环境的异质性历史生物地理学 历史生物地理学人类基因组学是什么?

更多相关视频

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea07:19

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea

Published on: November 25, 2016

11.5K
Individual Culturing of Tigriopus Copepods and Quantitative Analysis of Their Mate-guarding Behavior06:24

Individual Culturing of Tigriopus Copepods and Quantitative Analysis of Their Mate-guarding Behavior

Published on: September 26, 2018

9.6K

相关概念视频

Formation of Species01:31

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.3K
Speciation Rates01:07

Speciation Rates

Overview
21.2K
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.1K
The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.7K
Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.2K
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).
58.4K