Navigation Links
Study finds surprising new branches on arthropod family tree
Date:2/10/2010

iops, a 2-inch crustacean that looks like a cross between a horseshoe crab and a mayfly, had also been thought of as an early crustacean, but it too was shown to have a relatively modern origin in the new analysis, Cunningham said.

"Taxonomists have been arguing about these things for decades, and people kept coming at this with one data set after another," Cunningham said. This latest study has created a fuller picture of the arthropod family tree by using more species and more genes, he said.

Beginning in 2001, Jeffrey Shultz, an associate professor of entomology at Maryland, led the efforts to figure out which species needed to be sequenced for a robust comparison, and then to round up suitable specimens of each. The study included nematodes, scorpions, dragonflies, barnacles, copepods and centipedes.

Remipedes, one of the two species of Xenocarida in the study, had to be fetched from partially submerged limestone caves in the Yucatan Peninsula and preserved just so. Bitty creatures called mystacocarids that live between grains of sand were captured by the Natural History Museum's Regina Wetzer, using a microscope on a Massachusetts beach.

Once assembled, the 75 species were then stripped down to their DNA for a painstaking search to find genetic sequences that would appear across all arthropods, enabling statistical comparisons.

The lab of Jerome Regier at Maryland's Center for Biosystems Research combed through 2,500 different combinations of PCR primers to find 62 protein-coding gene sequences that could be compared across all 75 species. Regier was an early proponent of using protein coding genes to sort out the arthropod tree, while most other researchers were using relatively less complex analyses from the DNA found in ribosomes and mitochondria.

The researchers ran four different statistical approaches, including two new ones invented at Maryland, "and they all came up with the same answer," Cunningham
'/>"/>

Contact: Karl Leif Bates
karl.bates@duke.edu
919-681-8054
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New genome sequence will aid study of important food, fuel crops
2. New UC Davis study: Climate tipping points may arrive without warning, says top forecaster
3. Multicenter study finds little effect of soy isoflavones on bone loss in postmenopausal women
4. New study examines the impact on children of food product placements in the movies
5. Comprehensive study using bioinformatics predicts the molecular causes of many genetic diseases
6. Study reveals new details on the dangers of third-hand smoke
7. UC Davis study confirms link between advanced maternal age and autism
8. NTU researchers complete the worlds first in-depth study of the malaria parasite genome
9. Study reveals potential evolutionary role for same-sex attraction
10. Study shows male erectile dysfunction drug enhances fetal growth in female sheep
11. LSTM begins £0.5 million malaria study in Burkina Faso
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/26/2015)... The Granite Club, Canada,s ... announced it has implemented a state-of-the-art access and security ... and staff, while restricting access to authorized users only. ... IMID Access system because it has the perfect combination ... in addition to unparalleled security," said James DiRenzo ...
(Date:3/24/2015)... March 24, 2015   NexID Biometrics LLC, ... security-authentication needs, today announced the beginning of shipments of ... The company, based in Potsdam, ... three-day Connect:ID Expo, which began here today at the ... version 2.0 of its SDK boosts the accuracy rate ...
(Date:3/23/2015)... , March 23, 2015   HOYOS Labs ... management company, today announced that the Company will demonstrate ... both enterprise and consumers at Connect:ID on March 23 ... HOYOS Labs will highlight the IEEE Biometric Open ... ; and enterprise access control system. BOPS was ...
Breaking Biology News(10 mins):Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3
... Service and the Southern Group of State Foresters released the ... Tuesday, May 17, which identifies areas forest managers will focus ... According to the report, urbanization, bioenergy use, weather patterns, ... South,s forests between the years 2010 and 2060. About ...
... be nutritional powerhouses, but some types are no match ... "mummy berry" disease. Fortunately, U.S. Department of Agriculture ... in blueberry breeding and cultivation. Geneticist Mark Ehlenfeldt and ... They work for USDA,s Agricultural Research Service (ARS). ...
... have been reviewing the family-group names in several major ... works is to provide a foundation of valid, accepted ... taxa, facilitate decisions on priority, promote long-term stability of ... transition of taxonomy into the digital age. A ...
Cached Biology News:Forest Service unveils first comprehensive forecast on southern forests 2Forest Service unveils first comprehensive forecast on southern forests 3
(Date:4/1/2015)... N.H. , April 1, 2015 Emerson ... IGNITE: The Business of Better Medicine . The ... business knowledge to develop a thriving and fulfilling practice. ... the Omni La Costa Resort and Spa, the conference ... attendees can expect to accomplish key projects and leave ...
(Date:4/1/2015)... - Portage Biotech Inc. ("Portage") (OTC Market: PTGEF, ... that Biohaven Pharmaceutical Holding Company Limited (Biohaven), which ... agreement with inVentiv Health for the operational execution ... compound (BHV-0223). Biohaven is engaged ... neuroscience compounds targeting the glutamatergic system. Clinical drug ...
(Date:4/1/2015)... /CNW/ - Canada,s Research-Based Pharmaceutical Companies ... released report on Cost Drivers of Public Drug Plans in ... the report, the rates of change in drug costs have ... -0.8 percent in 2012/13 for a number of select public ... the costs of medicines without considering their overall impact on ...
(Date:4/1/2015)... Los Angeles, CA (PRWEB) April 01, 2015 ... portable reader that can read both chromatographic and fluorescent ... a leading supplier of high performance, quantitative readers and ... readers globally. The HRDR-400 is a first of its ... capabilities in one instrument. , Dr. Neven Karlovac, ...
Breaking Biology Technology:Emerson Ecologics Announces First Annual Conference for Integrative Healthcare Practitioners 2Emerson Ecologics Announces First Annual Conference for Integrative Healthcare Practitioners 3Portage's Biohaven Announces Agreement with inVentiv Health 2Portage's Biohaven Announces Agreement with inVentiv Health 3Rx&D responds to PMPRB report: overall impact of medicines must always be considered 2Holomic to Introduce the First Dual, Chromatographic and Fluorescent Rapid Test Reader, the HRDR-400 2
... and OMX Nordic Exchange: EPCT) today announced that ... be presenting at the IBC conference,on Assays and ... San Diego, CA,on October 17, 2007. Dr. Drewe ... discovery efforts targeting the Myc oncogene pathway,utilizing EpiCept,s ...
... NEW YORK, Oct. 15 Senex Biotechnology, Inc. ... at the 8th International,Conference on Alzheimer,s Disease Drug ... of Senex, described the identification of the first,drug ... amounts of,several proteins involved in Alzheimer,s disease, including: ...
... Therapeutics, Inc.,has named Jeffrey N. Fellows, a biotechnology ... regulatory experience, as Vice President,of Regulatory Affairs. ... PhD, said,"Jeff is a great addition to our ... clinical trials applications, regulatory compliance and,interactions with the ...
Cached Biology Technology:EpiCept to Present Pre-clinical Advances of Myc Oncogene Directed Drug Discovery at Assays and Cellular Targets Conference 2EpiCept to Present Pre-clinical Advances of Myc Oncogene Directed Drug Discovery at Assays and Cellular Targets Conference 3EpiCept to Present Pre-clinical Advances of Myc Oncogene Directed Drug Discovery at Assays and Cellular Targets Conference 4EpiCept to Present Pre-clinical Advances of Myc Oncogene Directed Drug Discovery at Assays and Cellular Targets Conference 5Senex Biotechnology Announces Presentation of Alzheimer's Disease Drug Discovery Effort 2Senex Biotechnology Announces Presentation of Alzheimer's Disease Drug Discovery Effort 3Velcura Therapeutics, Inc. Appoints Industry Executive to Lead Regulatory Affairs 2
Rabbit polyclonal to Testosterone 19 ( Abpromise for all tested applications). Antigen: Testosterone 19 CME HSA (Human)...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Goat polyclonal to Als2 ( Abpromise for all tested applications). entrezGeneID: 57679 SwissProtID: Q96Q42...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Biology Products: