Navigation Links
The secret life of millipedes
Date:8/21/2011

Male adult helminthomorph millipedes usually have one or two pairs of legs from their seventh segment modified into sexual appendages. These specialized gonopods are used as claspers to hold the female during mating or to transfer sperm. New research published in BioMed Central's open access journal Frontiers in Zoology has looked in detail at millipede development and the internal reorganization needed to produce functional gonopods.

Millipede puberty is a radical affair. The change in function from leg to gonopod can occur within a couple of moults, during which the millipede typically adds more segments to its length and sheds its too-small skin. These animals are difficult to study with standard techniques due to their hard exoskeleton, because secretions from their stink-glands interfere with most conventional microscopy preparation techniques. However, using confocal laser scanning microscopy, researchers from the University of Padova were able to investigate this dramatic transformation throughout the relevant moults.

Conversion of legs to gonopods first requires regression of the legs in segment VII into tiny primordia. The primordia then develop into gonopods and the exoskeleton rearranges, producing a gonopodal sac which shelters the base of the gonopods and a U-shaped apodeme, to act as an anchor point for the bulky muscles required to operate the gonopods. In three species out of the four investigated, some of these muscles, both protractors and retractors , extend to attach to skeletal structures on the flanking segments, VI or VIII, and another muscle (abductor) stretches across the pair of appendages to move them apart in a pincer movement.

Dr Leandro Drago, one of the team who performed this work, said that, "Conversion of legs into specialized gonopods via non-systemic metamorphosis is not a simple matter of changing the appearance of the legs and adding spines. The exoskeleton and muscle reorgani
'/>"/>

Contact: Dr. Hilary Glover
hilary.glover@biomedcentral.com
44-203-192-2370
BioMed Central
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Green and lean: Secreting bacteria eliminate cost barriers for renewable biofuel production
2. Researchers track the secret lives of feral and free-roaming house cats
3. Former HHS Secretary Tommy G. Thompson to Chair Stayhealthy Board
4. As the worm turns, its secrets are revealed
5. Beetle bling: Researchers discover optical secrets of metallic beetles
6. MSU lands $4.1 million grant to unlock plants biochemistry secrets
7. Secrets of a precision protein machine
8. Secret lives of the furred and feathered
9. Researchers unlock new secret to how smells are detected
10. Breaking the mucus barrier unveils cancer cell secrets
11. Uncovering the genome secrets of the Blackleg fungus
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The secret life of millipedes
(Date:10/29/2014)... An innovative workflow reveals new research potential of the ... recently published article in the Biodiversity Data ... BOLD in tabular format and imported these into a ... Writting Tool (PWT). Data were used to study ... wasps from the Microgastrinae subfamily. , BOLD is originally ...
(Date:10/29/2014)... new study on a large cohort of kidney cancer ... of the disease -- and reveals an apparent link ... cancer, particularly in Romania. , The research, by an ... and Genome Quebec Innovation Centre in Montreal, underscores the ... acid. The compound, found in plants of the Aristolochia ...
(Date:10/28/2014)... the National University of Singapore (NUS) have discovered a ... and laying direct developing eggs in live bamboo with ... spotted bush frog ( Raorchestes chalazodes ). This ... species known to adopt this novel reproductive strategy. The ... Biological Journal of the Linnean Society , in ...
Breaking Biology News(10 mins):Go straight and publish: From Barcode of Life Data Systems to scholarly publishing systems 2Study sheds light on genetic architecture of kidney cancer 2Study sheds light on genetic architecture of kidney cancer 3NUS researchers discover for the first time that a rare bush frog breeds in bamboo 2NUS researchers discover for the first time that a rare bush frog breeds in bamboo 3
... CORVALLIS, Ore. Marine resource managers often gauge the health ... of predator-prey relationships in the Bering Sea found that it ... it,s how densely they are aggregated. It,s more ... need to balance how much energy they expend in searching ...
... HOUSTON (Jan. 3, 2013) Plasmonic gold nanoparticles ... researchers have found a way to selectively heat diverse ... industry. Rice scientists led by Dmitri Lapotko and ... 19th century as gold colloids, heat up at near-infrared ...
... , a professor of mathematics at the University of ... receive the 2013 Levi L. Conant Prize from the American Mathematical ... prize recognizes the best expository research paper published in either the ... the AMS in the preceding five years. Baez and ...
Cached Biology News:Bering Sea study finds prey density more important to predators than biomass 2Bering Sea study finds prey density more important to predators than biomass 3Nanoparticles reach new peaks 2Nanoparticles reach new peaks 3UC Riverside mathematicians recognized by American Mathematical Society 2
(Date:10/30/2014)... A solution to one of the key challenges in ... University of Sussex physicists. , In a paper published ... Barry Garraway and colleagues show how to make a ... , Quantum technology devices, such as high-precision sensors and ... interaction of atoms. But the methods for trapping these ...
(Date:10/27/2014)... October 27, 2014 The ... produce, exhibit and sell its artificial "lower limb", ... their patent.      (Photo: http://photos.prnewswire.com/prnh/20141027/713097 ... of fighting, the definitive judgement has arrived: Roadrunnerfoot, ... innovative and accessible hi-tech prostheses with composite materials, ...
(Date:10/27/2014)... BOSTON, MA (PRWEB) October 27, 2014 ... and profit. SoundConnect , an industry leading ... for its partners and agents to deliver cloud-based ... and accelerate growth opportunities. , With SoundConnect’s ... for every twenty-five video and/or web conferencing licenses ...
(Date:10/27/2014)... Janssen Biotech, Inc. and the Crohn,s ... the launch of Get Your Full ... designed to provide resources for people living with ... of nutrition and appropriate therapy in managing IBD. ... with this release, please click: http://www.multivu.com/players/English/7261131-janssen-ccfa-get-your-full-course-for-ibd-wellness-with-sunny-anderson/ ...
Breaking Biology Technology:Italian Lower Limb Prosthesis Company Wins Lawsuit Against German Giant Ottobock 2SoundConnect Unveils Q4 Partner Incentives 2Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 2Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 3Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 4
... a network of tiny sensors as small as dewdrops ... intruder. Scattered outdoors on rocks, fence posts and doorways, ... are a completely new and cost-effective system for safeguarding and ... his Tel Aviv University Faculty of Engineering team drew upon ...
... in key leadership expertise to strengthen its European business ... SIRO ClinPharm Pvt. Ltd., a leading multinational full ... of Scott L. Spector as President Strategic Operations Europe. ... office of Omega Mediation . Mr. Spector brings ...
... faced H1N1 Flu OutbreaksJAMAICA, N.Y., May 26 ... of SANYO North America, announces the donation of ... level of safe, healthy air for areas where ... The first recipients to receive the donated SANYO ...
Cached Biology Technology:Intruder alert: Tel Aviv University's 'Smart Dew' will find you! 2SIRO Group Appoints Scott L. Spector as President, Strategic Operations, for its European Business 2SANYO Donates Air Purification Systems Effective Against Flu Viruses to New York Airports and Schools 2SANYO Donates Air Purification Systems Effective Against Flu Viruses to New York Airports and Schools 3SANYO Donates Air Purification Systems Effective Against Flu Viruses to New York Airports and Schools 4
... The Biometra TProfessional Thermocycler combines top ... silver block achieves high speed and unparalleled ... graphical display providing programming in a spreadsheet ... High Performance Smart Lid opens on the ...
... Vesicles Isolation Kit provides all the ... synaptic vesicle fraction. The isolation procedure ... the synaptosomes, and differential centrifugation followed ... kit also contains an antibody specific ...
... extraction of DNA fragments from 150 bp to > ... uses GelMelt solution to dissolve the gel slice, followed ... in a spin column format. After a wash step, ... spin column can bind up to 20 g DNA. ...
This kit is designed to select cells labeled with fluorescein isothiocyanate- (FITC-) conjugated antibodies. Kit includes reagents for labeling 3 x 10 9 cells and EasySep magnet....
Biology Products: