Showing posts with label Dr. Juan Martinez Cruzado. Show all posts
Showing posts with label Dr. Juan Martinez Cruzado. Show all posts

9/05/2009

Taino Documentary Turns Lens to Boriken

UCTP Liaison Officer Roger Guayakan Hernandez,
Naniki Reyes Ocasio of the Caney Quinto Mundo,
and videographer Ray Ibsen meet in Orocovis, Boriken.
(Photo: A. Zacarias)


Boriken/Puerto Rico (UCTP Taino News) -
Emmy Award winning team Alex Zacarias (Producer/Director) and videographer Ray Ibsen traveled to Boriken (Puerto Rico) in August to continue work on their Taino documentary production.

The filmmakers interviewed various members of the island's local Taino community including representatives of the
Consejo General de Taino Borincanos, the Caney Quinto Mundo, the United Confederation of Taino People and others. The team also interviewed the Hon.Victor L. Vassallo Anadón of Puerto Rico’s House of Representatives and Dr. Juan Martinez Cruzado, a Geneticist at the University of Puerto Rico.

Zacarias noted that the recent trip to Boriken resulted in the gathering of enough film footage and information to pursue the funding needed to continue production.


UCTPTN 09.05.2009

1/27/2008

Tracing Taíno Ancestry in Puerto Rico


Since 1994, Dr. Juan Carlos Martínez Cruzado has been working on the quest to find the origins of the Taínos. The genetic professor from the Biology Department of the University of Puerto Rico in Mayagüez (UPRM) confessed that the only thing that he knew before about the first inhabitants of our island was what his 5th-and 11th-grades history classes taught him.

He recalls that the archaeologist Juan José Ortiz Aguilú, director of the Archaeology Program of the Institute of Puerto Rican Culture, was the person who awoke his interest on this topic, when he offered Martínez Cruzado the chance to investigate the mitochondrial genetic material (mtDNA) of an ancient skeleton.

Although the majority of our genetic material is inside the nucleus of our cells, the mtDNA can only be found outside the nucleus in an organelle called mitochondria. Martínez Cruzado, a Harvard Ph.D., clarified that the mtDNA is 200,000 times smaller than the nuclear DNA.

“We all possess the mtDNA, but it’s only transmitted by mothers,” explained the
professor. Also, in the mtDNA a mutation or change in composition occurs each 3,000 years.

Because of this, the mtDNA can be preserved through many generations and help trace human migrations around the world. Although racial mixing has been a common historical phenomenon in the Caribbean, there are mtDNAs that have maintained their original state and can be identified as African, Taíno or Caucasian. “The evolution of human kind is written on the mitochondrial DNA”, he stated.

At the beginning of his research Martínez Cruzado searched for Taíno ancestry by
extracting mtDNA from bones. This technique was discarded because the results didn’t show variety in the genetic material extracted, and the technique was too expensive and complicated.

The professor, then decided to collect hair, saliva and blood samples from people with typical Taíno traits to obtain their mtDNA. Between 1998 and 1999, the investigation was based on analyzing the mtDNA of voluntaries from UPRM and Indieras, Maricao. The study revealed a higher incidence of Taíno DNA in people from Indieras whose physical appearance resembled Taínos: black hair and slanted eyes.

The professor then obtained funding from the National Foundation of the Science of United States to analyze the mtDNA of a representative sample in Puerto Rico.

Martínez Cruzado found 19 maternal lineages; nine of which have enough frequency and variability to suggest that they go back to the pre-Columbian period. “All the members of each lineage share a great-great-grandmother. These great-great-grandmothers are responsible for all the lineages in the world and share an African great-great-grandmother,” explained the scientist.

The study shows that the majority of the Indian lineages in Puerto Rico originated in the Amazonic region.

Martínez Cruzado’s study has been published in many scientific journals, including the American Journal of Physical Anthropology in September, 2005. The professor has extended the investigation of Indian migrations in the Caribbean region to the Dominican Republic and Haiti, where he has also found mtDNA with Indian heritage. The results are expected in 2008.

Author: Margarita Santori López, PRENSA RUM
Source: http://www.uprm.edu/news/docs/UPRMNews2008009.pdf

2/06/2007

More Evidence of Indigenous Ancestry in Puerto Rico...

Summary: Discovery of the Boricua Eve

"Six out of 10 Puertoricans have American Indian ancestors according to a recent study."

The simple vision of the tri-racial formula defining Puerto Ricans as a mixture of African, Spaniard and Taino could change due to a major scientific discovery involving 19 maternal indigenous lineages that could be defined as the Eve's of modern day Boriken (Puerto Rico).

This discovery is a new twist taken from a scientific investigation in 2003, in that it suggest that six out of 10 Puertoricans have a women ancestor of direct American Indian or of indigenous to American origina and that "indigenous women" have had a greater influence on Puerto Rican culture than previously admitted by academics.

According to investigative research done by genetic scientist specialising in molecular evolution, Juan Carlos Martinez cruzado and archeologist and anthropologist Juan Jose Ortiz Aguilu, the indigenous lineage is most common to the Puertorican of today than that of those with African lineage or Spaniard (European) descendance.

Review full article at: http://www.endi.com/XStatic/endi/template/nota.aspx?n=156387

De la zona amazónica las antiguas madres....

Por Carmen Millán Pabón

La zona amazónica parece ser la cuna de las antepasadas indígenas de la mayoría de los puertorriqueños de hoy.

Según estudios científicos de material de ADN mitocondrial que desarrollan el genetista especializado en evolución molecular Juan Carlos Martínez Cruzado y el arqueólogo y antropólogo Juan José Ortiz Aguilú, en Puerto Rico se han detectado 19 linajes indoamericanos, y el más común tiene un marcador que lo identifica como oriundo de América del Sur, específicamente de la región del Amazonas. “La evidencia arqueológica demuestra que, hace 6,000 años, había gente en Puerto Rico. ¿De dónde vinieron? Unos dicen que de América del Norte, otros de (América del) Sur. Una cosa no excluye la otra y queremos averiguar”, expresó Martínez Cruzado.

El genetista, que además es profesor en la Recinto Universitario de Mayagüez (RUM), de la Universidad de Puerto Rico (UPR), identificó el linaje que tiene el 21% de todos los indígenas como el C-1.

“Sospecho que este grupo es representativo y que llegó a Puerto Rico con los llamados saladoides, aproximadamente 500 años antes de Cristo. Ellos trajeron la cerámica y también la yuca”, sostuvo el estudioso.

El linaje C-1 experimentó una expansión poblacional al llegar a Puerto Rico, de manera que, aunque es el más frecuente, no es el más antiguo.

El segundo linaje más común -según apunta la investigación- es el que han llamado A-1, que tiene 16% de frecuencia. Aunque todavía no se ha podido asociar con ninguna región en el continente, la variabilidad sugiere que es de origen muy antiguo, posiblemente arcaico (antes de los saladoides y de los arauacos).

De los 19 linajes maternos indígenas encontrados en Puerto Rico, Martínez Cruzado encontró un total de cinco grandes familias de ADN mitocondrial en el “nuevo mundo”.

Esas familias fueron identificadas como A, B, C, D y X, esta última es la única cirscunscrita a América del Norte.

El ADN mitocondrial de las familias A, B, C y D se encuentran en América del Norte, Centro y Sur y en el Caribe.

En Puerto Rico, el más común es el A, con un 52% de frecuencia y nueve linajes; el segundo es el C con un 36% de frecuencia y cuatro linajes; el B tiene 9% y cuatro linajes; y, el D, 3% y dos linajes.

“Los linajes son ADN mitocondriales que son suficientemente distintos a los demás como para proponer que llegaron a Puerto Rico independientemente. Nueve componen el 84% del total de ADN mitocondrial indígena en Puerto Rico. Los otros diez no son frecuentes y sospecho que son de llegada reciente, post colonización. Eso es necesario confirmarlo con las osamentas”, indicó Martínez Cruzado.

El ADN miotocondrial se hereda únicamente de la línea materna y por eso es un marcador tan distintivo. El ADN mitocondrial que tiene una persona hoy en día es el mismo -excepto por las mutaciones- que tenía una antepasada directa hace miles de años atrás.

*Source: El Nuevo Dia

Cronología de los estudios del ADN mitocondrial...

1994 El antropólogo Juan José Ortiz Aguilú convida al geneticista especialista en evolución molecular Juan Carlos Martínez Cruzado a iniciar una investigación para la identificación ADN indígena en restos prehistóricos.

1995 El ADN mitocondrial indígena se extrajo de cuatro osamentas.

1997 Aixa Sánchez Crespo, estudiante graduada del Programa de Biología del RUM, identificó ADN mitocondrial amerindio en las osamentas.

1998 Se tomaron muestras de la población actual puertorriqueña para identificar la incidencia de ADN mitocondrial indígena.

1999 La Fundación Nacional de Ciencias en Washington asigna $262,000 para continuar las investigaciones. El Centro de Investigación Social Aplicada del RUM hizo la selección de muestras para el estudio.

1999 a 2000 Unas 800 personas participan del estudio.

2002 Culmina la investigación que concluye que, de la muestra, el 61% de los puertorriqueños tenía ADN mitocondrial indígena; 27%, africano subsahariano; y el 12%, euroasiático occidental.

2005 El American Journal of Physical Antropology publica el estudio.

2006 Se lanzan dos hipótesis nuevas: Que parte de esos linajes pudieron tener un origen en el periodo Arcaico Amerindio de Puerto Rico; y, que la mujer indígena es figura clave en la transmisión de valores culturales para la sociedad actual.

2007 Están en proceso de recuperar material prehistórico para extracción de ADN indígena en diferentes regiones de Puerto Rico; y, se amplía la muestra de ADN mitocondrial contemporáneo en Puerto Rico y la República Dominicana.

*Source: El Nuevo Dia

10/11/2004

Editorial: Our Taino Bloodlines

By Domingo Hernandez De Jesus

Some critics of the Taino movement were denying any biological inheritance among the contemporary Boricua population. When faced with the now famous DNA studies they defended their position by stating that this Native American contribution could not be attributed to the Taino bloodlines. They argued by reminding us that for two hundred years, Native Americans were brought as slaves from many parts of South, Central and North America, so these and not the Taino may be our ancestors.

It seems to me that they did not read Dr. Juan Martinez Cruzado's full report. He points out that the number of Africans taken to Puerto Rico vastly outnumbered those of the Native American slaves who originated out side of the island. If the biological contribution in question came only from a imported source, then the number of persons with these markers today would be smaller than the African. Therefore it is his conclusion that the majority of the Native American genetic material found in Puerto Rico today comes directly from the Taino population since it surpasses the number of African contribution by 40%. We also know that this DNA study was tracing the female line and records show that the vast majority of slaves were male and their genetic contributions would not show in this particular study.

The devastation of the European invasion was felt in common by all Native American nations. At the time of the first contact our Taino ancestors numbered in the millions. It is interesting to note that many smaller nations managed to escape extinction. The Cherokee were estimated to have about 20,000 at the time on contact. Their numbers were affected by the same conditions. During the Trail of Tears most of the Cherokee were forced to leave their land for far away Oklahoma. Less than 1,000 Cherokees managed to escape the removal and were able to stay in their ancestral lands. Today their descendents are known as the Eastern Cherokee and they have 13,079 enrolled members. Just 48 years before the removal of the Cherokee we find a military census in Puerto Rico that mentions 2,302 Indians living in an area known as "Las Indieras" that same original census also mentions that there was another Indian community of similar size living in Anasco. This census is saying that there were at least 4,000 full blood Native Americans living in Puerto Rico at that time (1778) They were full bloods because the Spanish were fanatical about creating names and categories for those of any amount of mixture (ie. Mestizo,Pardo, Mulato,Trigueno, Jabao, Zambo etc).

These people were clearly listed as Indios. So I wonder why if we had 4,000 full
bloods just 200 years ago, how is it we have none today? Or do we? How could the Eastern Cherokee go from a small group of 1,000 to 13,000 in 200 yrs. while the Taino go from 4,000 to 0 in the same time frame? There is no mention of wars or uprisings as was happening in the USA at the time. So what could account for the Taino's disappearance ?

We look at the 1800 census and those that came afterward the category of Indian has been left out. The numbers under the category of Pardo also show a great increase. The Indians were simply put in another category. This other category “Pardo" has been translated as colored. Many in the USA think of the term of color as being Black. Yet the census form had a different listing for “Free Blacks.” There were also listings for enslaved Blacks and enslaved Mulatos. The term Pardo (brown) was used only for free persons who were considered non Whites and also non Black by Spanish standards. these were the bi-racial and tri-racial combinations of Native American African and European offspring.

To insist that the Taino are extinct is to deny the overwhelming evidence to the contrary.

It is to imply that somehow under the same circumstances and in some cases even better conditions than others, our ancestors were too weak or too dumb to survive when others did. It is to assume that our Taino blood line is thin and faint. That we are claiming one individual who lived 500 years ago. These conclusions are a mistake, and border on racist. The truth is that 200 years ago Native full bloods are documented to be in Puerto Rico that they numbered between 2,000 to 4,000. That these people were in contact with a larger population of Mestizos, Mulatos and Zambos. Most of which by definition had a strong Native component. Add to this the fact that there was a strong level of isolation to many parts of Puerto Rico, not only in the 1800s but even into the mid-20th century.

In the early 1900's there were barely 60 miles of paved roads in all of Puerto Rico. There were many communities that were inaccessible except by mule, horse or by foot. While every official town had their own church, the surrounding villages did not. This is why Puerto Ricans baptize their children twice. Once without a priest and one with. Both of my grandmothers gave birth at home in huts with only a mid-wife to help. My point is that in isolation the blood quantum can stay the same indefinitely, if the persons reproducing have the same quantum. So in communities where you have full bloods, mixing with half bloods and these villages are isolated you will still find many if not most with consistent and strong features reflecting their Indian background. This is the case in a large proportion of our people. This is why so many of us still fit the description given by Colon himself: bronze skin tone, straight black hair, high cheekbones, etc.

Many of our families report that their children are born with the " Mongol Spot" But doctors don't tell them that it is a trait common with Asians and Native Americans , they just tell them it means that the baby will be dark. This spot is what originally was meant by the " Mancha de Platano" (the Plantain Stain) because that is what it tends to look like on our babies. Our Taino bloodlines are not weak or faint, many of us just have to go back two generations to connect with our Taino life ways. In terms of blood we know it is there. We need only give the eye test to ourselves or to some other close relative.

I don't have to claim someone from 500 years ago. I claim my grandfather and both my grandmothers.