Navigation Links
Advance in chromosomal evolution in sea cradles
Date:12/12/2012

The study of chromosome changes arisen during species evolution is a current and intriguing topic that evolutionary biology proposes. However, in several groups (for example, molluscs), and chitons in particular, chromosome studies are scarce, with a few species investigated and analyses performed mostly with simple methods.

Only 2,5% of about 900 living species of chitons have been so far karyologically investigated, all of them in the same order (Chitonida). The authors note that the species of suborder Chitonina all have a karyotype of 2n=24 chromosomes, all biarmed, that is metacentric or submetacentric. The species studied by the authors, formerly included in Chitonida, also possesses 2n=24 elements, but many are uniarmed and, therefore, resembling to the chromosome complement of species of the suborder Acanthochitonina. This provides support to recent attribution of the studied sea cradle to the latter suborder.

Furthermore, the comparison among the karyotypes of the suborder Acanthochitonina allows the authors to propose that in this group of chromosome changes mainly occurred by fusion among uniarmed elements. This kind of change is that mainly involved in chromosome animal evolution. The study was published in the open access journal Comparative Cytogenetics.


'/>"/>

Contact: Gaetano Odierna
gaetano.odierna@unina.it
Pensoft Publishers
Source:Eurekalert  

Page: 1

Related biology news :

1. Pan-European organizations call for an advanced understanding of the human brain
2. Discovery of 100 million-year-old regions of DNA shows short cut to crop science advances
3. UMass Medical School faculty elected to the American Association for the Advancement of Science
4. Kansas State University scientists named American Association for the Advancement of Science fellows
5. UF researcher tests powerful new tool to advance ecology, conservation
6. Cell Transplantation reports islet cell advancement increases impact on transplantation
7. Surface analysis techniques for advanced materials enhance Mazovias research potential
8. Study advances use of stem cells in personalized medicine
9. A novel therapeutic advancement in the search for heart muscle progenitor cells
10. Researchers sequence swine genome, discover associations that may advance animal and human health
11. Stem cell finding could advance immunotherapy for lung cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Advance in chromosomal evolution in sea cradles
(Date:6/14/2017)... -- IBM (NYSE: IBM ) is introducing several innovative partner ... developing collaboration between startups and global businesses, taking place in ... event, nine startups will showcase the solutions they have built ... France is one of ... 30 percent increase in the number of startups created between ...
(Date:5/16/2017)... TEANECK, N.J. , May 16, 2017  Veratad ... leading provider of online age and identity verification solutions, ... the K(NO)W Identity Conference 2017, May 15 thru May ... Ronald Regan Building and International Trade Center. ... across the globe and in today,s quickly evolving digital ...
(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... For the second time in ... STEM Mentoring Award. Representatives of the FirstHand program travelled to Washington, D.C. Tuesday, ... , US2020’s mission is to change the trajectory of STEM education in America ...
(Date:10/10/2017)... 10, 2017 SomaGenics announced the receipt of ... develop RealSeq®-SC (Single Cell), expected to be the first ... (including microRNAs) from single cells using NGS methods. The ... to accelerate development of approaches to analyze the heterogeneity ... "New techniques for measuring levels of mRNAs in individual ...
(Date:10/9/2017)... 9, 2017  BioTech Holdings announced today identification ... its ProCell stem cell therapy prevents limb loss ... Company, demonstrated that treatment with ProCell resulted in ... as compared to standard bone marrow stem cell ... in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... line of medical marijuana products targeting the needs of consumers who are incorporating ... Kindred takes place in Phoenix, Arizona. , As operators of two successful Valley ...
Breaking Biology Technology: