Featured Research

from universities, journals, and other organizations

Detailed look at hybridogenic reproduction methods on a community scale among desert ants

Date:
June 11, 2012
Source:
Libre de Bruxelles, Université
Summary:
Biologists have for the first time taken a detailed look at hybridogenic reproduction methods on a community scale among desert ants.

The Ecology and Evolutionary Biology Department at Université libre de Bruxelles, in partnership with a research team at CSIC Seville, have for the first time taken a detailed look at hybridogenic reproduction methods on a community scale among desert ants.

The vast majority of animals reproduce through sexual intercourse: fertilizing an egg with a sperm cell. However, some rare species have evolved alternative reproduction methods.

Amongst these, one of the most unusual methods is the hybridogenic mechanism used by some species of fish, stick insects, and frogs. In these species, mating takes place between males and females of different species or genetic lineages, meaning that all offspring are therefore hybrids. Young females then undergo a rare genetic occurrence. Their somatic cells contain both maternal and paternal genes, as is the case with species that mate through standard sexual reproduction. However, they eliminate the paternal genes when creating ova, meaning that only the mother's genes are carried forward. In other words, females pass on the female genome alone to future generations.

The Behavioral and Evolutionary Ecology Service led by Serge Aron at Université libre de Bruxelles, in partnership with a research team at CSIC Seville (Spain) have for the first time analysed hybridogenic reproduction methods on a community scale among a species of desert ant, Cataglyphis hispanica.

Like other social hymenopterous insects (bees, wasps, bumble bees), ant communities are characterised by the existence of two casts of female: fertile queens and generally sterile workers who carry out tasks necessary for the day-to-day success of their society.

Through genetic analysis of populations belonging to this species, scientists have shown that sexual partners always belong to two distinct and interdependent genetic lines. The queens then produce hybrid sterile worker descendants: the result of crossing the two lines. However, the queens clone themselves to produce fertile females (future queens). Male offspring also develop from unfertilized eggs, and share the same genetic lineage as their mother. A result of this is that only maternal genes are passed on from one generation to another. This reproduction strategy is a form of social hybridogenics, whereby queens use sexed reproduction to provide their societies "somatic" growth (production of workers), and asexual reproduction for the "fertile" line (sexed reproduction). This strategy has significant evolutionary implications.


Story Source:

The above story is based on materials provided by Libre de Bruxelles, Université. Note: Materials may be edited for content and length.


Journal Reference:

  1. Laurianne Leniaud, Hugo Darras, Raphael Boulay, Serge Aron. Social Hybridogenesis in the Clonal Ant Cataglyphis hispanica. Current Biology, 2012; DOI: 10.1016/j.cub.2012.04.060

Cite This Page:

Libre de Bruxelles, Université. "Detailed look at hybridogenic reproduction methods on a community scale among desert ants." ScienceDaily. ScienceDaily, 11 June 2012. <www.sciencedaily.com/releases/2012/06/120611153007.htm>.
Libre de Bruxelles, Université. (2012, June 11). Detailed look at hybridogenic reproduction methods on a community scale among desert ants. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2012/06/120611153007.htm
Libre de Bruxelles, Université. "Detailed look at hybridogenic reproduction methods on a community scale among desert ants." ScienceDaily. www.sciencedaily.com/releases/2012/06/120611153007.htm (accessed September 16, 2014).

Share This



More Plants & Animals News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) — The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) — Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) — Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) — Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
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:
from the past week

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