Featured Research

from universities, journals, and other organizations

Process producing neuronal diversity in fruit flies' visual system identified

Date:
August 25, 2014
Source:
New York University
Summary:
A mechanism that helps explain how the diversity of neurons that make up the visual system is generated has been identified by biologists.

New York University biologists have identified a mechanism that helps explain how the diversity of neurons that make up the visual system is generated.

"Our research uncovers a process that dictates both timing and cell survival in order to engender the heterogeneity of neurons used for vision," explains NYU Biology Professor Claude Desplan, the study's senior author.

The study's other co-authors were: Claire Bertet, Xin Li, Ted Erclik, Matthieu Cavey, and Brent Wells -- all postdoctoral fellows at NYU.

Their work, which appears in the latest issue of the journal Cell, centers on neurogenesis -- the process by which neurons are created.

A central challenge in developmental neurobiology is to understand how progenitors -- stem cells that differentiate to form one or more kinds of cells -- produce the vast diversity of neurons, glia, and non-neuronal cells found in the adult Central Nervous System (CNS). Temporal patterning is one of the core mechanisms generating this diversity in both invertebrates and vertebrates. This process relies on the sequential expression of transcription factors into progenitors, each specifying the production of a distinct neural cell type.

In the Cell paper, the researchers studied the formation of the visual system of the fruit fly Drosophila. Their findings revealed that this process, which relies on temporal patterning of neural progenitors, is more complex than previously thought.

They demonstrate that in addition to specifying the production of distinct neural cell type over time, temporal factors also determine the survival or death of these cells as well as the mode of division of progenitors. Thus, temporal patterning of neural progenitors generates cell diversity in the adult visual system by specifying the identity, the survival, and the number of each unique neural cell type.

The research was supported, in part, by a grant from the National Institutes of Health (R01 EY017916).


Story Source:

The above story is based on materials provided by New York University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Claire Bertet, Xin Li, Ted Erclik, Matthieu Cavey, Brent Wells, Claude Desplan. Temporal Patterning of Neuroblasts Controls Notch-Mediated Cell Survival through Regulation of Hid or Reaper. Cell, 2014; 158 (5): 1173 DOI: 10.1016/j.cell.2014.07.045

Cite This Page:

New York University. "Process producing neuronal diversity in fruit flies' visual system identified." ScienceDaily. ScienceDaily, 25 August 2014. <www.sciencedaily.com/releases/2014/08/140825095837.htm>.
New York University. (2014, August 25). Process producing neuronal diversity in fruit flies' visual system identified. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2014/08/140825095837.htm
New York University. "Process producing neuronal diversity in fruit flies' visual system identified." ScienceDaily. www.sciencedaily.com/releases/2014/08/140825095837.htm (accessed October 1, 2014).

Share This



More Plants & Animals News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Newsy (Sep. 30, 2014) A new study published by the World Wide Fund for Nature found that more than half of the world's wildlife population has declined since 1970. Video provided by Newsy
Powered by NewsLook.com
Dolphins Might Use Earth's Magnetic Field As A GPS

Dolphins Might Use Earth's Magnetic Field As A GPS

Newsy (Sep. 30, 2014) A study released Monday suggests dolphins might be able to sense the Earth's magnetic field and possibly use it as a means of navigation. Video provided by Newsy
Powered by NewsLook.com
How To Battle Stink Bug Season

How To Battle Stink Bug Season

Newsy (Sep. 30, 2014) Homeowners in 33 states grapple with stink bugs moving indoors at this time of year. Here are a few tips to avoid stink bug infestations. Video provided by Newsy
Powered by NewsLook.com
California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins