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Genetics used to prove linguistic theories
November 07, 2005Most comparisons of language and inherited traits consider whether genetic patterns conform with expected relationships observed by linguists. But few have considered the use of genetic data to support specific hypotheses raised by linguists regarding the relationships between language families.
In a forthcoming article in Current Anthropology, Francisco M. Salzano (Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil) examines the proposals of three eminent linguists through the lens of genetic data. Using genetic information from thousands of subjects, Salzano and his co-authors compare the work of Cestmir Loukotka, Joseph H. Greenberg, and Aryon D. Rodrigues, all of whom have written about the relationships among the four most important lowland South American Native language families: Maipure, Carib, Tupi, and Je. "The approach seems useful to unravel the complex history of South Amerinds, a group which shows one of the largest language diversity in the world," writes Salzano.
The researchers employed different combinations of 37 blood groups plus protein genetic systems, as well as an additional set of 13 autosomal short tandem repeat polymorphisms (all markers of different portions of our genome). Their findings support Rodrigues' suggestion of a close connection between Carib and Tupi, with Je and Maipure showing more distant relationships.
University of Chicago Press Journals
University of Chicago Press Journals
Genetics Current Events and Genetics News RSSResearchers Identify Role of Gene in Tumor Development, Growth and Progression
Virginia Commonwealth University Massey Cancer Center and VCU Institute of Molecular Medicine researchers have identified a gene that may play a pivotal role in two processes that are essential for tumor development, growth and progression to metastasis.
Genetic analysis helps dissect molecular basis of cardiovascular disease
Using highly precise measurements of plasma lipoprotein concentrations determined by nuclear magnetic resonance spectroscopy (NMR), researchers led by Daniel Chasman at Brigham and Women's Hospital and Harvard Medical School in Boston, MA, the Framingham Heart Study in Framingham, and the PROCARDIS consortium in Stockholm, Sweden and Oxford, England performed genetic association analysis across the whole genome among 17,296 women of European ancestry from the Women's Genome Health Study.
It's a gas: New discovery may lead to heartier, high-yielding plants
In a research report published in the November 2009 issue of the journal GENETICS, scientists show how a family of genes (1-aminocyclopropane-1-carboxylate synthase, or ACS genes) are responsible for production of ethylene.
Gene mismatch influences success of bone marrow transplants
A commonly inherited gene deletion can increase the likelihood of immune complications following bone marrow transplantation, an international team of researchers reports in the November 22 advance online issue of Nature Genetics.
Cancer metabolism discovery uncovers new role of IDH1 gene mutation in brain cancer
Agios Pharmaceuticals today announced that its scientists have established, for the first time, that the mutated IDH1 gene has a novel enzyme activity consistent with a cancer-causing gene, or oncogene.
Scientists at UA, collaborating institutions decode maize genome
Scientists from the University of Arizona led by Arizona Genomics Institute director Rod A. Wing and from collaborating institutions have deciphered the complete genetic code of the maize plant for the first time.
Ancestry attracts, but love is blind
People preferentially marry those with similar ancestry, but their decisions are not necessarily based on hair, eye or skin colour.
Scientists unlock clues for tailoring corn plant for food, energy needs
Scientists have long known that the offspring of two inbred strains tend to be superior to both their parents. Now, a team of researchers including a University of Florida geneticist has discovered clues to why that might be the case for one of the most important crops in the world: corn.
Causative gene of a rare disorder discovered by sequencing only protein-coding regions of genome
For the first time, scientists have successfully used a method called exome sequencing to quickly discover a previously unknown gene responsible for a mendelian disorder.
New map of variation in maize genetics holds promise for developing new varieties
A new study of maize has identified thousands of diverse genes in genetically inaccessible portions of the genome. New techniques may allow breeders and researchers to use this genetic variation to identify desirable traits and create new varieties that were not easily possible before.
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