Featured Research

from universities, journals, and other organizations

Genetically Distinct Carriers Of Chagas Disease-causing Parasite Live Together

Date:
March 18, 2009
Source:
Public Library of Science
Summary:
Researchers have found living together the known carrier species for the Chagas disease-causing parasite Triatoma dimidiata (also known as "kissing bugs") and a cryptic species that looks the same -- but is genetically distinct from -- the known carrier species. The two species haven't interbred for as many as 5 million years, according to a report in PLoS Neglected Tropical Diseases.

Researchers have found living together the known carrier species for the Chagas disease-causing parasite Triatoma dimidiata (also known as "kissing bugs") and a cryptic species that looks the same — but is genetically distinct from — the known carrier species. The two species haven't interbred for as many as 5 million years, according to a new report.

Researchers with Loyola University New Orleans (United States), University of Wisconsin-Madison (United States), University of San Carlos (Guatemala), and Universidad Autσnoma de Yucatαn (Mexico) also describe the first finding of the cryptic species in Belize.

By examining the DNA of kissing bugs from throughout Mexico and Central America, the research team showed that the two species co-exist in the same towns and rural areas although they do not interbreed. "It will be important to understand what is keeping them separated," says Patricia Dorn, one of the lead authors of the study.

Chagas disease remains the leading cause of parasitic illness in Latin America, with approximately 10 million people infected.

"The best hope in curbing Chagas disease lies with controlling the kissing bugs that spread the parasite," Dorn says.

"To effectively control the kissing bugs, and thus interrupt transmission of Chagas disease, it will be important to correctly identify distinct species transmitting the parasite and to then design interventions that will be effective against particular species," Dorn says.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Dorn et al. Two Distinct Triatoma dimidiata (Latreille, 1811) Taxa Are Found in Sympatry in Guatemala and Mexico. PLoS Neglected Tropical Diseases, 2009; 3 (3): e393 DOI: 10.1371/journal.pntd.0000393

Cite This Page:

Public Library of Science. "Genetically Distinct Carriers Of Chagas Disease-causing Parasite Live Together." ScienceDaily. ScienceDaily, 18 March 2009. <www.sciencedaily.com/releases/2009/03/090309205319.htm>.
Public Library of Science. (2009, March 18). Genetically Distinct Carriers Of Chagas Disease-causing Parasite Live Together. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2009/03/090309205319.htm
Public Library of Science. "Genetically Distinct Carriers Of Chagas Disease-causing Parasite Live Together." ScienceDaily. www.sciencedaily.com/releases/2009/03/090309205319.htm (accessed July 30, 2014).

Share This




More Plants & Animals News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) — Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) — Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) — At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Raw: Otters Enjoy Water Slides at Japan Zoo

Raw: Otters Enjoy Water Slides at Japan Zoo

AP (July 30, 2014) — River otters were hitting the water slides to beat the summer heatwave on Wednesday at Ichikawa City's Zoological and Botanical Garden. (July 30) Video provided by AP
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