Navigation Links
Picky female frogs drive evolution of new species in less than 8,000 years

ontact between northern and southern lineages, and we speculate that this may be due to gene flow from the extensive range of the southern lineage into the contact zone," Hoskin said. "This problem does not exist at the other contact because the southern lineage population is very small and occurs primarily within the contact zone."

Because the frogs in the isolated contact area had a distinctively different call, and because they were effectively isolated from surrounding populations by mating preference, Hoskin and colleagues concluded that female choice led to this new species.

Interestingly, evolutionary theory would predict that the southern and northern frog populations would drift apart into two distinct species. In the case of the green-eyed tree frog, Moritz said, a subpopulation of the southern species drifted away not only from the northern species, but also from the southern. That was unexpected, he said.

Moritz noted that geographic isolation in this "dinky bit of rainforest in Australia" has split many species, and that reinforcement at zones of recontact may be generating other new species.

"In this tropical system, we have had long periods of isolation between populations, and each one, when they come back together, have got a separate evolutionary experiment going on. And some of those pan out and some don't. But if they head off in different directions, the products themselves can be new species. And I think that's kinda cool. It gives us a mechanism for very rapid speciation."


'"/>

Source:University of California - Berkeley


Page: 1 2 3 4

Related biology news :

1. Mother birds increase progesterone to hatch females
2. Decisions, decisions: Male or female?
3. Looks matter to female barn swallows
4. Male elephants woo females with precise chemistry
5. Older female fish prefer imperfect male mates, study finds
6. New study explores beetle species with two forms of females
7. Male rivalry increases when females at most fertile, say researchers
8. Brain differences could explain why males and females experience pain relief differently
9. UCLA study finds same genes act differently in males and females
10. Choosy females make colourful males
11. New technology addresses female fertility preservation
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Picky female frogs drive evolution new species less than years

(Date:4/14/2015)... NEW YORK , April 14, 2015 /PRNewswire/ ... Fast IDentity Online (FIDO ® ) Alliance tm ... standards-based specifications. FIDO members commit to share technology ... authentication methods that are interoperable, more secure and ... specifications enable biometric identity verification that protects sensitive ...
(Date:4/13/2015)... 13, 2015  higi, a leading cloud-based consumer engagement ... fully engage with their communities around health and wellness, ... and secure API.  ... accessible, affordable, and convenient vehicle to receive validated health ... The API will allow higi,s trusted partners, ...
(Date:4/8/2015)... CHARLOTTE, N.C. , April 8, 2015 /PRNewswire/ ... technology solutions and services, and Morpho, a leading ... in partnership to produce the market,s most advanced ... Infinisource,s iSolved NXG time clock is setting ... attendance and labor data for the small and ...
Breaking Biology News(10 mins):HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3
... Large-scale network organisation in the avian forebrain Birds ... years. So it,s hardly surprising that under a microscope, the ... a mammal. Nevertheless, birds have been shown to be remarkably ... puzzles. How is it that both kinds of brain are ...
... it hard to follow Government guidelines to cut their fat ... known as the sugar-fat seesaw. The review, published ... Nutrition , looked at 53 scientific papers and found a ... coming from fats and sugars. People with diets low in ...
... the new research results of the VTT Technical Research Centre ... of high-quality biofuels for the price of less than one ... the transfer of more than half the energy of wood ... for the construction of a commercial-scale production plant in Europe. ...
Cached Biology News:Frontiers news briefs: July 4 2Frontiers news briefs: July 4 3Frontiers news briefs: July 4 4Frontiers news briefs: July 4 5Frontiers news briefs: July 4 6Gasification method turns forest residues to biofuel with less than a euro per litre 2
(Date:5/28/2015)... , May 28, 2015 RXi Pharmaceuticals ... on discovering and developing innovative therapeutics, primarily in the ... of a public offering of 26 million units at ... for gross proceeds of approximately $10.4 million. Each unit ... a 13-month overallotment purchase right to purchase 0.50 of ...
(Date:5/28/2015)... -- GenVec, Inc. (Nasdaq: GNVC ) today announced that ... will present a company overview at the Jefferies 2015 ... June 4, 2015. The live and ... at the following link:  http://wsw.com/webcast/jeff88/gnvc .  This link ... visit www.genvec.com , click on "Investors and Media" ...
(Date:5/28/2015)... (PRWEB) May 28, 2015 The Fertility ... our own Dr. Danielle Vitiello has taken on a ... role, Dr. Vitiello will provide guidance, leadership, oversight and ... to count Dr. Vitiello among our team of experienced ... and CEO, Joseph A. Hill, M.D. “Her expertise and ...
(Date:5/28/2015)... May 28, 2015 Whitehouse Laboratories is ... its long term partnership with PTI Inspection Systems. Whitehouse ... provide clients with custom-tailored method development and validation ... currently available. The agreement includes a more formal program ... across organizational lines. This enables a more effective team ...
Breaking Biology Technology:RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 3GenVec To Present At The Jefferies Healthcare Conference 2Danielle Vitiello, MD of Fertility Centers of New England, Named New Medical Director 2Whitehouse Labs Renews & Enhances Partnership with PTI Inspection Systems 2Whitehouse Labs Renews & Enhances Partnership with PTI Inspection Systems 3
... Volker Wippersteg, Katja Kapp, Werner Kunz, and Christoph G Grevelding,Institute for ... , ... Schistosomes are parasitic helminths that cause bilharzia (schistosomiasis) , ... significance (Savioli et al.1997). , ...
... The following protocol is an adaptation for protein determination,in the ... up to 50 mM BME or 5 mM DTT., ... , DC Protein Assay, Bio-Rad Laboratories catalog ... Iodoacetamide, DTT, 1 ...
... L. Tucker, Soybean and Alfalfa Research Lab,USDA, ARS, Bldg. 006, BARC-West, Beltsville, MD, USA ... Introduction , ... (GUS) as a marker to study gene expression in ... plant tissue can be quantified by fluorometry or assayed qualitatively , ...
Cached Biology Technology:Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 2Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 3Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 4Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 5Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 6Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 7Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 8Biolistic Gene Transfer to Generate Transgenic Schistosomes, Rev A 9Modification of Bio-Rad DC Protein Assay for Use With Thiols 2Using the VersaFluor Fluorometer to Quantitate GUS Expression in Plant Tissues Bombarded With the Biolistic PDS-1000/He System 2Using the VersaFluor Fluorometer to Quantitate GUS Expression in Plant Tissues Bombarded With the Biolistic PDS-1000/He System 3Using the VersaFluor Fluorometer to Quantitate GUS Expression in Plant Tissues Bombarded With the Biolistic PDS-1000/He System 4
... venom Description: Phosphodiesterase I (venom ... studying nucleic acid structure and ... 5'-mononucleotides from 3'-hydroxy-terminated ribo-oligonucleotides and ... cleaves ADP-ribosylated proteins at the ...
... IITC Life Science Rotarods are used to assess ... or fatigue resistance on mice and rats using ... Extremely user friendly; the animals are placed on ... drops onto the individual sensing platforms below, its ...
... DNase I Amplification Grade ... DNA to oligodeoxyribonucleotides. The ... units/mg. DNAse I Amplification ... and tested for absence ...
... DNase I, ds Qualified is a special ... be used for double stranded cleavage of DNA ... of Mg2+, the enzyme makes double strand breaks ... of the resulting fragments can be controlled by ...
Biology Products: