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Heterosis : Many Genes, Many Mechanisms—End the Search for an Undiscovered Unifying Theory
Author
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-30
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Heterosis is the increase in vigor that is observed in progenies of matings of diverse individuals from different species, isolated populations, or selected strains within species or populations.
Heterosis has been of immense economic value in agriculture and has important implications regarding the fitness and fecundity of individuals in natural populations.
Genetic models based on complementation of deleterious alleles, especially in the context of linkage and epistasis, are consistent with many observed manifestations of heterosis.
The search for the genes and alleles that underlie heterosis, as well as for broader allele-independent, genomewide mechanisms, has encompassed many species and systems.
Common themes across these studies indicate that sequence diversity is necessary but not sufficient to produce heterotic phenotypes, and that the molecular pathways that produce heterosis involve chromatin modification, transcriptional control, translation and protein processing, and interactions between and within developmental and biochemical pathways.
Taken together, there are many and diverse molecular mechanisms that translate DNA into phenotype, and it is the combination of all these mechanisms across many genes that produce heterosis in complex traits.
American Psychological Association (APA)
Kaeppler, Shawn. 2012. Heterosis : Many Genes, Many Mechanisms—End the Search for an Undiscovered Unifying Theory. ISRN Botany،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-490196
Modern Language Association (MLA)
Kaeppler, Shawn. Heterosis : Many Genes, Many Mechanisms—End the Search for an Undiscovered Unifying Theory. ISRN Botany No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-490196
American Medical Association (AMA)
Kaeppler, Shawn. Heterosis : Many Genes, Many Mechanisms—End the Search for an Undiscovered Unifying Theory. ISRN Botany. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-490196
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490196