Polyploidy: genome obesity and its consequences
نویسندگان
چکیده
منابع مشابه
Polyploidy: genome obesity and its consequences.
Polyploidy is a major evolutionary feature of many plants and some animals (Grant, 1981;Otto & Whitton, 2000). Allopolyploids (e.g. wheat, cotton, and canola) were formed by combination of two or more distinct genomes, whereas autopolyploids (e.g. potato, sugarcane, and banana) resulted from duplication of a single genome. Both allopolyploids and autopolyploids are prevalent in nature (Tate et ...
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Polyploidization, the addition of a complete set of chromosomes to the genome, represents one of the most dramatic mutations known to occur. Nevertheless, polyploidy is well tolerated in many groups of eukaryotes. Indeed, the majority of flowering plants and vertebrates have descended from polyploid ancestors. This Review examines the short-term effects of polyploidization on cell size, body si...
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In 1998 the World Health Organization declared childhood obesity a 'global epidemic' (WHO, 1998). The Department of Health has identified that prevention must be aimed at children to address its rise in future generations (DoH, 2002). Childhood obesity is recognised as a predictor of adolescent and adult obesity (Smith, 2002; Parsons et al, 1999; Whitaker et al, 1997). Without intervention to p...
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Genome doubling (polyploidy) has been and continues to be a pervasive force in plant evolution. Modern plant genomes harbor evidence of multiple rounds of past polyploidization events, often followed by massive silencing and elimination of duplicated genes. Recent studies have refined our inferences of the number and timing of polyploidy events and the impact of these events on genome structure...
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Polyploidy has played a major role in the evolution of many eukaryotes. Recent studies have dramatically reshaped views of polyploid evolution, demonstrating that most polyploid species examined, both plant and animal, have formed recurrently from different populations of their progenitors. Populations of independent origin can subsequently come into contact and hybridize, generating new genoty...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2007
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2007.02084.x