Navigation Links
Sand fly barcoding in Panama reveals Leishmania strain and its potential control
Date:4/6/2010

In the first survey of sand flies in Panama to use genetic barcoding, scientists at the Smithsonian Tropical Research Institute and Gorgas Memorial Laboratories identified 20 sand fly species from Barro Colorado Island. Two species carried Leishmania naiffi, a parasite that causes cutaneous leishmaniasis: persistent, itchy skin lesions. Three species carried Wolbachia, a bacterial parasite of insects that could contribute to a strategy to control the flies and limit disease transmission.

"We used DNA barcodingsequencing a particular gene of the blood-feeding flies we collectedto identify the 20 fly species; two species could not be distinguished visually," said Don Windsor, a Smithsonian scientist, who collaborated with STRI interns Jorge Azpurua, Dianne de la Cruz and Anayansi Valderama. "By characterizing another gene fragment from the nucleus of Leishmania, we discovered which fly species carried this disease-causing trypanosome."

Leishmaniasis is not new in central Panamait poses a long-standing health risk to residents and visitors in the region. L. naiffi, the species carried by the flies in this survey, was previously known only to be in the Caribbean and the Amazon. "Other species of Leishmania and the blood-feeding flies that transmit them are endemic in central Panama," said Windsor. "Either L. naiffi was here undetected, or it could be a recent introduction carried by animals or people coming into Panama. Another explanation is that it is gradually moving northward from South America into Central America."

Researchers hope that the presence of Wolbachia in the same species of flies that carry Leishmania may be useful in disease control. Wolbachia bacteria infect the flies and are passed readily from generation to generation. Wolbachia affects the flies' ability to reproduce and has been proposed as a possible biological control of other insect pests.

Windsor emphasized that common preventative measures such as wearing insect repellent and long-sleeved shirts and pants when going out at dawn or dusk should be standard practice for residents, researchers and tourists who visit lowland tropical forests where Leishmania is endemic.


'/>"/>

Contact: Beth King
kingb@si.edu
703-487-3770 x8216
Smithsonian Tropical Research Institute
Source:Eurekalert  

Related biology news :

1. Hidden habits and movements of insect pests revealed by DNA barcoding
2. Study finds DNA barcoding requires caution without closer examination
3. DNA barcoding of mosquito species deployed in bid to end elephantiasis
4. Smithsonian hosts 2010 International CAM Workshop in Panama
5. International team of scientists to meet in Panama to discuss future of the worlds forests
6. New marine plant identification guide for Panamas Eastern Pacific
7. Panama butterfly migrations linked to El Nio, climate change
8. Panama butterfly migrations linked to El Niño, climate change
9. Fossil teeth of browsing horse found in Panama Canal earthworks
10. First jaguar photo taken at Smithsonian Research Station in Panama
11. New movement models tested at the Smithsonian in Panama
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sand fly barcoding in Panama reveals Leishmania strain and its potential control
(Date:3/22/2016)... and SANDY, Utah , March ... operates the highest sample volume laboratory in ... and UNIConnect, leaders in clinical sequencing informatics and molecular ... of a project to establish the informatics infrastructure for ... NSO has been contracted by the Ontario Ministry ...
(Date:3/15/2016)... March 15, 2016 Yissum Research Development ... technology-transfer company of the Hebrew University, announced today the ... sensing technology of various human biological indicators. Neteera Technologies ... million from private investors. ... the detection of electromagnetic emissions from sweat ducts, enables ...
(Date:3/10/2016)... , March 10, 2016 ... market research report "Identity and Access Management Market by ... Compliance, and Governance), by Organization Size, by Deployment, by ... published by MarketsandMarkets, The market is estimated to grow ... Billion by 2020, at a Compound Annual Growth Rate ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... May 25, 2016 , ... The American Medical Informatics ... of the National Coordinator for Health IT (ONC) outlining a measurement approach to ... were available when and where it was needed. The organization of health informatics ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... and traumatic injuries, will be accelerated by research at Worcester Polytechnic Institute (WPI) ... of wound healing and tissue regeneration. , The novel method, developed by WPI ...
(Date:5/23/2016)... ... May 23, 2016 , ... PrecisionAg® Media has released ... and Beyond. The paper outlines the key trends that are creating both opportunities ... witnessed a lot of highs and lows as the precision agriculture market has ...
(Date:5/23/2016)... ... May 23, 2016 , ... ... on molecular nanotechnology, announced the winners for the 2015 Foresight Institute Feynman Prizes. ... are given in two categories, one for experiment and the other for theory ...
Breaking Biology Technology: