関連する実験動画

Updated: May 4, 2026

Manipulation of Gene Function in Mexican Cavefish
07:01

Manipulation of Gene Function in Mexican Cavefish

Published on: April 22, 2019

9.1K

形態学的進化の謎めいた変異:洞窟魚の目を失うためのコンデンサとしてHSP90

Nicolas Rohner1, Dan F Jarosz, Johanna E Kowalko

  • 1Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.

Science (New York, N.Y.)
|December 17, 2013
PubMed
まとめ

熱ショックタンパク質90 (HSP90) は,洞窟魚の隠れた目の大きさの変化を隠しています. HSP90を阻害する,または洞窟状態が,この変化を暴露し,目の喪失の進化におけるその役割を明らかにします.

さらに関連する動画

Genome Editing in Astyanax mexicanus Using Transcription Activator-like Effector Nucleases TALENs07:42

Genome Editing in Astyanax mexicanus Using Transcription Activator-like Effector Nucleases TALENs

Published on: June 20, 2016

7.8K
Behavioral Tracking and Neuromast Imaging of Mexican Cavefish14:58

Behavioral Tracking and Neuromast Imaging of Mexican Cavefish

Published on: April 6, 2019

7.2K

関連する概念動画

Gene Duplication and Divergence02:37

Gene Duplication and Divergence

The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was  generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.8K
Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
27.6K
Position-effect Variegation02:32

Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
5.6K
Speciation Rates01:07

Speciation Rates

Overview
18.8K
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
4.3K
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
48.9K