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:12/22/2016)... 20, 2016  As part of its longstanding mission to ... genetics company, recently released its latest children,s book, titled ... focuses on the topics of inheritance and variation of traits ... taught in elementary school classrooms in the US. ... illustrator Ariana Killoran , whose previous book with 23andMe, ...
(Date:12/16/2016)... --  IdentyTechSolutions America LLC , a leading provider ... a cutting-edge manufacturer of software and hardware security ... integrated solutions that comprise IDT biometric readers and ... IdentyTech,s customers with combined physical identification and anti-tailgating ... theft. "We are proud to use ...
(Date:12/15/2016)... ... and Markets has announced the addition of the "Global Military Biometrics ... forecasts the global military biometrics market to grow at a CAGR of ... prepared based on an in-depth market analysis with inputs from industry experts. ... coming years. The report also includes a discussion of the key vendors ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... and HOUSTON , ... ("NX Prenatal") today announced the formation of its ... leading clinicians and industry veterans who enhance the ... as it accelerates development of its novel prenatal ... provide medical, clinical and strategic guidance for the ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... software to leading biopharmaceutical and medical device manufacturers and regulators, is proud to ... CFR Part 11-compliant email client designed to provide product vigilance departments with the ...
(Date:1/19/2017)... ... 2017 , ... The American Medical Informatics Association (AMIA) today ... Policy. Specifically, the nation’s leading informatics experts, said data sharing plans should be ... recommended that NIH earmark funding for researchers to produce and execute data sharing ...
(Date:1/19/2017)... 18, 2017 The global biotechnology services ... billion by 2025, according to a new report ... been adaptive of the function of outsourcing certain ... Among the services outsourced, clinical trial management and ... & Johnson was the first pharmaceutical company to ...
Breaking Biology Technology: