Navigation Links
Bigger horns equal better genes

Size matters. At least, it does to an alpine ibex.

According to a team of international researchers, mature, male alpine ibex demonstrate a correlation between horn growth and genetic diversity. Past research studies have shown that greater genetic diversity correlates with a greater chance of survival.

"The size of the horns reliably advertises the genetic quality of the ibex—and the bigger, the better," said Dr. David Coltman, an evolutionary geneticist at the University of Alberta and co-author of the study, which was published this month in the journal Molecular Ecology.

The researchers found that horn sizes among younger ibex (one- to six-years-old) are relatively similar regardless of their genetic diversity. However, once the ibex mature to the age when they begin competing for reproductive mates (7 to 12), horn length varies according to genetic diversity: the greater the diversity, the greater the length of the horns.

The researchers believe the horn length discrepancies are evidence to support the mutation accumulation theory of ageing, which is the idea that, because natural selection weakens with age, genetic mutations have effects that accumulate over time. Therefore, differences in genetic quality become more apparent as an organism ages.

Coltman noted that his study, which incorporated genetic samples from more than 150 ibex, took into account the fact that environmental factors also play a role in determining ibex horn size.

The ibex's horns are considered a "secondary sexual trait". Researchers believe the horns help males successfully mate because they display genetic quality to females and also help to "win" physical battles and achieve high social rank among their competitors.

"We've learned from other species, such as deer and sheep, that horn or antler size can be a good indicator of an individual's quality and reproductive success," Coltman said. "We wanted to see if t
'"/>

Source:University of Alberta


Page: 1 2

Related biology news :

1. Bigger brain size matters for intellectual ability
2. Female pronghorns choose mate based on substance as well as show
3. Vanishing beetle horns have surprise function
4. Tetracycline plus teeth equal gray smile
5. Chemists create Superbowl molecule; May lead to better health
6. Protein discovery could unlock the secret to better TB treatment
7. Signaling protein builds bigger, better bones in mice
8. Harnessing microbes, one by one, to build a better nanoworld
9. Two are better than one
10. Discovery may lead to better Candidiasis drug
11. Insects, viruses could hold key for better human teamwork in disasters
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Bigger horns equal better genes

(Date:6/24/2015)... June 22, 2015 ... addition of the "Huawei Ascend Mate 7 ... to their offering. Huawei,s technological choice ... opposite direction than Apple,s and Samsung,s one. The ... developed by Fingerprint Cards, a main actor in ...
(Date:6/23/2015)... June 23, 2015  Crossmatch™, a leading ... today announced enhanced functionality of its DigitalPersona ... The enhancements build on the native flexibility ... Altus platform and provide expanded mobile credential ... In today,s environment of increasing cyber-attacks and ...
(Date:6/17/2015)... June 17, 2015  Synaptics Inc. (NASDAQ: ... today announced that Xiaomi, one of the world,s ... ClearPad ® family of capacitive touchscreen ... circuits (DDICs) for its latest smartphones, the Xiaomi ... for full in-cell display solutions and DDICs in ...
Breaking Biology News(10 mins):Huawei Ascend Mate 7 Fingerprint Sensor - Reverse Costing Analysis 2Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3
... was to test a computer algorithms ability to identify ... classify them according to different contexts and individual dogs. ... Hungarian sheepdogs (Mudi breed) in six different situations: stranger, ... recorded with a tape recorder before being transferred to ...
... The juries of the BBVA Foundation Awards for Biodiversity ... edition of the scheme. The Award for Scientific Research ... been granted ex aequo to leading scientists Harold Mooney ... Conservation projects in Latin America, with prize money of ...
... Isochronous Capability Enhances Company,s Leadership in USB Networking ... ... Silex Technology today,announced the SX-2000WG+ USB device server with isochronous ... like,webcams and speakers to be easily shared among multiple Windows and,Macintosh ...
Cached Biology News:Harold Mooney and Peter Raven, winners of the BBVA Foundation Award for Conservation Biology 2Harold Mooney and Peter Raven, winners of the BBVA Foundation Award for Conservation Biology 3Harold Mooney and Peter Raven, winners of the BBVA Foundation Award for Conservation Biology 4Harold Mooney and Peter Raven, winners of the BBVA Foundation Award for Conservation Biology 5Silex Introduces World's First Wireless USB Device Server With Streaming Video and Audio Data Transfer 2
(Date:7/6/2015)... SUNNYVALE, Calif. , July 6, 2015  Viveve Medical, ... announced that Patricia Scheller , Viveve,s Chief Executive Officer, ... present live at VirtualInvestorConferences.com on July 9, 2015. , ... 9, 2015 , , , , TIME:     ... , LINK: , , , http://tinyurl.com/viveve   , ...
(Date:7/3/2015)... 3, 2015 ... osoitteessa  http://www.openinnovationinscience.at Wienissä pidettävään ... Science" -jatkokoulutusohjelmaan 22.7.2015 asti.  ... tekemän, kansainvälisiä tutkijoita ja tiedemiehiä ... suurinta haastetta ovat kannustimien puute ...
(Date:7/3/2015)... , July 3, 2015  Pomerantz LLP announces ... Puma Biotechnology, Inc. ("Puma" or the "Company")(NYSE: PBYI ... filed in United States District Court, Central District of ... is on behalf of a class consisting of all ... 23, 2014 and May 13, 2015 inclusive (the "Class ...
(Date:7/2/2015)... , July 2, 2015 Amici ... Bio-tech procurement company Amici Procurement has chosen Microsoft Cloud ... it move to Office 365.      (Logo: ... small to medium-sized companies in the bio-tech sector with ... of the purchasing cycle to help them obtain best ...
Breaking Biology Technology:Viveve to Webcast Live at VirtualInvestorConferences.com 2Viveve to Webcast Live at VirtualInvestorConferences.com 3Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 2Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 3SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 2SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 3SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 4Biotech Procurement Company Moves to Office 365 with iomart 2
... , , , , ... /PRNewswire-Asia-FirstCall/ -- Tianyin,Pharmaceutical Co., Inc., (NYSE Amex: TPI ), ... Western Pharmaceuticals,based in Chengdu, China , today announced that ... of Pricing Mechanism of Medicine,and Medical Services by the Chinese ...
... , , SILVER SPRING, Md. ... UTHR ) announced today that it will release its ... on Tuesday, February 16, 2010 . , United Therapeutics ... 2010 , at 9:00 a.m. Eastern Time .  The ...
... , , , , , , ... Feb. 9 /PRNewswire-Asia-FirstCall/ -- NeoStem, Inc.,(NYSE Amex: NBS ) ... U.S. and China , announced,today that its stem cell collection ... addition of the physician group at Westlake,Orthopaedics Spine & Sports ("Westlake") ...
Cached Biology Technology:Tianyin Pharmaceutical Co., Inc. Expects to Benefit from the Recently Published Guide to Pricing Reform for Medicine and Medical Services 2Tianyin Pharmaceutical Co., Inc. Expects to Benefit from the Recently Published Guide to Pricing Reform for Medicine and Medical Services 3Busy Southwestern Orthopedic Practice Joins the NeoStem Stem Cell Collection Network 2Busy Southwestern Orthopedic Practice Joins the NeoStem Stem Cell Collection Network 3Busy Southwestern Orthopedic Practice Joins the NeoStem Stem Cell Collection Network 4
Mouse monoclonal antibody raised against a partial recombinant CRKRS. NCBI Entrez Gene ID = CRKRS...
Mouse monoclonal antibody raised against a partial recombinant CRKRS. NCBI Entrez Gene ID = CRKRS...
Mouse monoclonal antibody raised against a partial recombinant PRKG1. NCBI Entrez Gene ID = PRKG1...
Mouse monoclonal antibody raised against a partial recombinant ACTN4. NCBI Entrez Gene ID = ACTN4...
Biology Products: