Utilizan la genética para determinar origen de manuscritos

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Utilizan la genética para determinar origen de manuscritos

UNREAD_POSTpor Jose Vergara » 20 Ene 2009, 10:21

Utilizan la genética para determinar el lugar de origen de manuscritos medievales

Un investigador de la North Carolina State University, de Estados Unidos, está aplicando los últimos avances en genética para el desarrollo de técnicas con las que, en el futuro, se podrá desvelar el origen de libros manuscritos muy antiguos.

Hoy día existen miles de libros cuidadosamente manuscritos, que fueron producidos en la Europa medieval, pero los especialistas no terminan de saber con certeza su lugar de procedencia ni la fecha exacta de su creación.

Muchos de estos manuscritos medievales fueron escritos sobre pergaminos fabricados con pieles de animales, por lo que se puede extraer de ellos el ADN. La finalidad: ir creando una base de datos genética que, a largo plazo, sirva de referencia para determinar el momento y el sitio en que fueron copiados los libros.

Tomando como referencia los escasos manuscritos cuya fecha y origen ya están definidos con certeza, éstos proporcionarían gran cantidad de datos genéticos, puesto que cada tomo de pergamino medieval típico incluye las pieles de más de 100 animales. Así, una vez creada esta base de referencia de ADN, cualquier manuscrito de origen desconocido podrá relacionarse con los manuscritos contenidos en ella.

Los expertos creen que esta comparación genética permitirá identificar similitudes entre los libros que indicarán con bastante exactitud el lugar y el momento en que los tomos fueron escritos.

Fuente: Tendencias 21
Autor: Yaiza Martínez
Fecha: 19/01/09
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Jose Vergara
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NC State Researcher Uses DNA Testing to Unlock Secrets of ..

UNREAD_POSTpor Jose Vergara » 20 Ene 2009, 10:23

NC State Researcher Uses DNA Testing to Unlock Secrets of Medieval Manuscripts

Media Contact(s)
Dr. Timothy L. Stinson, (919) 515-0262, timothy_stinson@ncsu.edu
Matt Shipman, News Services, (919) 515-6386, matt_shipman@ncsu.edu

Thousands of painstakingly handwritten books produced in medieval Europe still exist today, but scholars have long struggled with questions about when and where the majority of these works originated. Now a researcher from North Carolina State University is using modern advances in genetics to develop techniques that will shed light on the origins of these important cultural artifacts.

Many medieval manuscripts were written on parchment made from animal skin, and NC State Assistant Professor of English Timothy Stinson is working to perfect techniques for extracting and analyzing the DNA contained in these skins with the long-term goal of creating a genetic database that can be used to determine when and where a manuscript was written. "Dating and localizing manuscripts have historically presented persistent problems," Stinson says, "because they have largely been based on the handwriting and dialect of the scribes who created the manuscripts – techniques that have proven unreliable for a number of reasons."

Stinson says genetic testing could resolve these issues by creating a baseline using the DNA of parchment found in the relatively small number of manuscripts that can be reliably dated and localized. Each manuscript can provide a wealth of genetic data, Stinson explains, because a typical medieval parchment book includes from several dozen to perhaps more than 100 animal skins.

Once Stinson has created a baseline of DNA markers with known dates and localities, he can take samples from manuscripts of unknown origin. Stinson can then determine what degree of relationship there is between the animals whose skins were used in manuscripts of unknown origin and those used in the baseline manuscripts. Stinson hopes this DNA comparison will enable him to identify genetic similarities that would indicate the general time and locale where a book was written.

On a larger scale, Stinson says, this research "might also allow us to trace the trade route of parchments" throughout the medieval world – a scholarly achievement that would provide a wealth of data on the evolution of the book industry during the Middle Ages. Stinson's partner in this research effort is his brother, Dr. C. Michael Stinson, a biology professor at Southside Virginia Community College.

Stinson will be presenting the findings of his early research in this area at the annual meeting of the Bibliographical Society of America in New York City on Jan. 23. Stinson is one of three researchers asked to participate in the society's New Scholars Program for 2009. The work that Stinson will be presenting was funded by grants from the Digital Research and Curation Center at Johns Hopkins University and the Council on Library and Information Resources.

Fuente: North Carolina State University
Autor: North Carolina State University
Fecha: 12/01/09
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Jose Vergara
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