Navigation Links
UT Arlington scientists suggest 'Fragile Y Hypothesis' to explain chromosome loss
Date:6/17/2014

A UT Arlington research team says their study of genetic information from more than 4,000 beetle species has yielded a new theory about why some species lose their Y chromosome and others, such as humans, hang on to it.

They call it the "fragile Y hypothesis."

The biologists' idea is that the fate of the Y chromosome is heavily influenced by how meiosis, or the production of sperm, works in an organism. They believe the size of an area where X and Y genetic information mingle or recombine can serve as a strong clue that a species is at risk of losing the Y chromosome during sperm production. Previous work has attributed Y chromosome loss to the lesser importance of genes it carries.

Heath Blackmon, a Ph.D. student at The University of Texas at Arlington, said most previous research into sex chromosomes has occurred either in mammals or the fruit fly. But, beetles are the most diverse group on the planet scientists have already described and given names to over 350,000 species.

"One of the big reasons that we wanted to do this study was to see if beetles would reveal anything new about the way that sex chromosomes evolve," said Blackmon, who also worked on the research at the National Evolutionary Synthesis Center in Durham, North Carolina.

Blackmon and Jeffery Demuth, UT Arlington associate professor of biology, co-authored a paper published in the June issue of Genetics on the work, which is supported by a grant from the National Institutes of Health. The paper is a part of a special "Genetics of Sex" collection from the Genetics Society of America.

The X and Y genes control human sex determination, with an XY combination resulting in a male and an XX combination resulting in a female. Researchers study the evolution of these chromosomes, in part, to learn more about human evolution and disease. Some diseases, such as hemophilia, are associated only with genes on the sex chromosomes.

Like humans, sex determinat
'/>"/>

Contact: Traci Peterson
tpeterso@uta.edu
817-521-5494
University of Texas at Arlington
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. National herpetology society honors UT Arlington professor for discoveries
2. UT Arlington physics team demonstrates new power generation technique
3. National Academy of Inventors names four UT Arlington professors as charter fellows
4. UT Arlington engineer wins NSF award to support microfluidic analyses of tissue, cell samples
5. UT Arlington bioengineer to use hybrid imaging system to see deep tissue
6. UT Arlington engineer to search for bad algal blooms
7. UT Arlington research to benefit quality, flow in 150-mile Integrated Pipeline
8. UT Arlington engineer to design prototype that predicts flash flooding
9. 9 UT Arlington educators honored for teaching excellence
10. NSF awards to UT Arlington researchers will fuel sustainable solutions
11. UT Arlingtons Nguyen named American Heart Association fellow
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UT Arlington scientists suggest 'Fragile Y Hypothesis' to explain chromosome loss
(Date:9/18/2014)... Sept. 18, 2014 -- Arizona turned its newborn screening program ... few short months, earning it the first-ever Newborn Screening Quality ... of Dimes presented Will Humble, M.P.H., Arizona,s Department of Health ... today. Mr. Humble established a policy of full transparency for ... newborn blood samples to the lab for analysis, and set ...
(Date:9/18/2014)... of carbon and nitrogen comprise all spheres of ... systems have caused imbalances and perturbations that resulted ... Increased GHGs result in climate changes which influence ... and the atmosphere. Understanding these feedback mechanisms has ... environmental science during the past three decades. , ...
(Date:9/18/2014)... can swim up to 400 kilometres in search of a ... change. , Clownfish spend their entire adult lives under the ... wander the open ocean, says study co-author, Dr Hugo Harrison ... (Coral CoE) at James Cook University. , "In the past ... given a rare glimpse into how far they can swim, ...
Breaking Biology News(10 mins):March of Dimes honors Arizona with first-ever newborn screening award 2March of Dimes honors Arizona with first-ever newborn screening award 3Greenhouse gas research enters a new era 2Nemo's epic journey to find a new home 2
... A team led by researchers at the University ... the "superbug" methicillin-resistant Staphylococcus aureus (MRSA) is ... is well known for causing difficult-to-treat and potentially fatal ... 1990s it has also been infecting otherwise healthy people ...
... study shows for the first time that episodes of ... the 2001-02 drought, greatly accelerated development of the mountain ... to chart the evolution of the current pine beetle ... beetle outbreak in the two primary host species, the ...
... a daily multivitamin, but little is known about a multivitamin,s ... Brigham and Women,s Hospital (BWH) finds that daily multivitamin use ... A similar BWH study, announced last month, found daily ... 8 percent. The cardiovascular disease findings will be presented ...
Cached Biology News:Superbug MRSA identified in US wastewater treatment plants 22001-2002 drought helped propel mountain pine beetle epidemic, says CU study 22001-2002 drought helped propel mountain pine beetle epidemic, says CU study 32001-2002 drought helped propel mountain pine beetle epidemic, says CU study 4Daily multivitamin use does not reduce cardiovascular disease risk in men 2
(Date:9/19/2014)... , Sept. 19, 2014 Pfenex Inc. ... the development of high-value and difficult to manufacture proteins ... presenting at the 21 st Annual NewsMakers in ... . Bertrand Liang , chief executive officer ... development programs and business strategy on Friday, September 26, ...
(Date:9/19/2014)... September 19, 2014 Barnhardt Manufacturing ... Label for its Organic Cotton . The USDA ... of renewable biobased ingredients meets or exceeds levels set ... composed in whole or in significant part of agricultural, ... allow our Organic cotton to be immediately identified as ...
(Date:9/19/2014)... , September 19, 2014 ... Markets ( http://www.researchandmarkets.com/research/b2jxhs/micro_market ) has announced the addition of ... Columns"  report to their offering.       ... is one of the fastest-growing segments in the ... billion in 2013, and expected to reach $2.0 ...
(Date:9/19/2014)... September 19, 2014 The new , ... , available today on PharmaBoardroom.com for ... crisis that rocked the Spanish economy in 2009, and the ... community has remained pragmatic in times of trouble. ... the fifth biggest European market, and the general conditions to ...
Breaking Biology Technology:Pfenex to Present at Upcoming Industry Conference on September 26 2Barnhardt Manufacturing Company Earns USDA Certified Biobased Product Certification and Label for Organic Cotton 2Micro Market Monitor : Global Pre-packed Chromatography Columns 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3
... (Nasdaq: SGMO ) today reported second quarter 2011 ... quarter ended June 30, 2011, Sangamo reported a consolidated net ... a net loss of $3.9  million, or $0.09 per share, ... 2011, the company had cash, cash equivalents and marketable securities ...
... 2011 Once routinely discarded during the birth process, ... life-saving stem cells that can be collected and stored ... and vast medical potential, published data shows that three ... about cord blood banking. In connection with ...
... Calif., July 26, 2011 Synterra Energy, Inc. ... and assets for waste biomass conversion from Pacific ... Lion Bio-Energy (Toledo, Ohio).  With the merger, Synterra ... bio-refineries for the economic production of renewable fuels, ...
Cached Biology Technology:Sangamo BioSciences Reports Second Quarter 2011 Financial Results 2Sangamo BioSciences Reports Second Quarter 2011 Financial Results 3Sangamo BioSciences Reports Second Quarter 2011 Financial Results 4Sangamo BioSciences Reports Second Quarter 2011 Financial Results 5Sangamo BioSciences Reports Second Quarter 2011 Financial Results 6Sangamo BioSciences Reports Second Quarter 2011 Financial Results 7Parent's Guide to Cord Blood Foundation Launches Nation's First Searchable Map of U.S. Sites for Donating Umbilical Cord Blood 2Parent's Guide to Cord Blood Foundation Launches Nation's First Searchable Map of U.S. Sites for Donating Umbilical Cord Blood 3Synterra Energy Merges Key Technologies to Commercialize Next Generation Integrated Bio-refinery 2
... SNPstream System Delivers 4,600 to Over 3 ... Genotyping System is capable of performing 4,600 ... Part of the GenomeLab family of products*, ... up to 48 SNPs in each well ...
Mouse monoclonal antibody to ACP2 - acid phosphatase 2, lysosomal...
Mouse monoclonal antibody to DCAMKL2 - doublecortin and CaM kinase-like 2...
... Tube Disperser System from IKA Works is the ... cleaner, safer, and more efficient way to disperse ... 2 to 15 ml inside sealed tubes. Depending ... of 4 different tube types. Each tube is ...
Biology Products: