• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Friday, October 3, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Health

Turns out—male roundworms are picky when choosing a mate, new research finds

Bioengineer by Bioengineer
March 11, 2024
in Health
Reading Time: 3 mins read
0
Douglas Portman, PhD, professor of Biomedical Genetics at the Del Monte Institute for Neuroscience at the University of Rochester
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

A piece of rotting fruit is likely covered in hundreds if not thousands of microscopic roundworms, including C. elegans—a popular experimental model system for studying neurogenetics. With a lifespan of only a few weeks, C. elegans must reproduce quickly and often. The species is made up of hermaphrodites and males. The hermaphrodites have female bodies, can self-fertilize, and can mate with males. Recent research from of the Portman Lab at the Del Monte Institute for Neuroscience at the University of Rochester, found the males do not mate indiscriminately—they are selective about things like age, mating history, and nutrition.

Douglas Portman, PhD, professor of Biomedical Genetics at the Del Monte Institute for Neuroscience at the University of Rochester

Credit: John Schlia Photography

A piece of rotting fruit is likely covered in hundreds if not thousands of microscopic roundworms, including C. elegans—a popular experimental model system for studying neurogenetics. With a lifespan of only a few weeks, C. elegans must reproduce quickly and often. The species is made up of hermaphrodites and males. The hermaphrodites have female bodies, can self-fertilize, and can mate with males. Recent research from of the Portman Lab at the Del Monte Institute for Neuroscience at the University of Rochester, found the males do not mate indiscriminately—they are selective about things like age, mating history, and nutrition.

“We have been aware of many of the mating cues this species uses, but this is the first time we have been able to look at them together to learn more about what they tell a male about a potential mate,” Doug Portman, PhD, professor of Biomedical Genetics said. “Assessing a mate’s characteristics seems to be something that only the male does. Understanding sex differences in C. elegans gives us important insight into how genes influence the function of neurons and circuits to guide innate behaviors—like choosing a mate.”

C. elegans is an invaluable tool to neuroscience research. Scientists have identified all of the roundworm’s neurons—there are only a few hundred of them—and the connections between its neurons have also been mapped, providing a model for understanding how neuronal circuits work in humans. It is well understood that mating is a priority for male C. elegans. Previous research out of the Portman lab found male C. elegans will suppress the ability to locate food in order to find a mate.

In a study out today in Current Biology, the Portman lab conducted experiments to observe how roundworms in petri dishes choose between potential mates. They discovered that the male worms used diverse chemical (pheromones) and physical (touch) signals to determine the sex, age, nutritional health, and mating history of the hermaphrodites. Researchers found male worms can determine a hermaphrodite’s nutritional status—whether it is healthy or food-deprived—and whether it has previously mated. When given a choice, the males showed preference toward hermaphrodites that have not previously mated with another male and are nutritionally healthy. However, once a hermaphrodite is a few days old—approaching middle age for a worm—it puts out a powerful sex pheromone that attracts males over long distances. That is because it starts to run out of its own sperm, so finding a mate becomes a more important.

“Each time we learn more about the role genetic sex plays in neural circuits to generate different behavioral outcomes, and the neuronal mechanisms that underlie them, we come closer to understanding the role that genes play in sculpting innate behavior,” Portman said. “We now aim to better understand how the male’s neural circuits integrate different mating cues and arrive at a decision about what to do.”

Additional authors include first author Jintao Luo, PhD, of Xiamen University, Chance Bainbridge and Renee Miller of the University of Rochester, and Arantza Barrios of the University College London. This research was supported by the National Institute of Health, the Fundamental Research Funds for the Central Universities, Natural Science Foundation of Fujian Province, and the Leverhulme Trust.



Journal

Current Biology

DOI

10.1016/j.cub.2024.02.036

Article Publication Date

11-Mar-2024

Share12Tweet8Share2ShareShareShare2

Related Posts

Global Insights on Sustaining Practice-Based Research Networks

October 3, 2025

Scientists Harness Ultrasound Holograms to Modulate Brain Networks

October 3, 2025

Sleep Patterns in U.S. Kids with Neurodiversity

October 3, 2025

Experts Warn: Whooping Cough Poses Fatal Risk for Young Infants

October 3, 2025

POPULAR NEWS

  • New Study Reveals the Science Behind Exercise and Weight Loss

    New Study Reveals the Science Behind Exercise and Weight Loss

    92 shares
    Share 37 Tweet 23
  • New Study Indicates Children’s Risk of Long COVID Could Double Following a Second Infection – The Lancet Infectious Diseases

    85 shares
    Share 34 Tweet 21
  • Physicists Develop Visible Time Crystal for the First Time

    74 shares
    Share 30 Tweet 19
  • How Donor Human Milk Storage Impacts Gut Health in Preemies

    65 shares
    Share 26 Tweet 16

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Exploring Phytobiotics in Fish and Shellfish

New NDUFA3 Variants Linked to Mitochondrial Disorder

SurFF: New Model For Intermetallic Crystal Analysis

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 60 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.