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Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India
BACKGROUND: During the domestication of crops, individual plants with traits desirable for human needs have been selected from their wild progenitors. Consequently, genetic and nucleotide diversity of genes associated with these selected traits in crop plants are expected to be lower than their wild...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070345/ https://www.ncbi.nlm.nih.gov/pubmed/24935343 http://dx.doi.org/10.1186/1471-2156-15-71 |
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author | Choudhury, Baharul Islam Khan, Mohammed Latif Dayanandan, Selvadurai |
author_facet | Choudhury, Baharul Islam Khan, Mohammed Latif Dayanandan, Selvadurai |
author_sort | Choudhury, Baharul Islam |
collection | PubMed |
description | BACKGROUND: During the domestication of crops, individual plants with traits desirable for human needs have been selected from their wild progenitors. Consequently, genetic and nucleotide diversity of genes associated with these selected traits in crop plants are expected to be lower than their wild progenitors. In the present study, we surveyed the pattern of nucleotide diversity of two selected trait specific genes, Wx and OsC1, which regulate amylose content and apiculus coloration respectively in cultivated rice varieties. The analyzed samples were collected from a wide geographic area in Northeast (NE) India, and included contrasting phenotypes considered to be associated with selected genes, namely glutinous and nonglutinous grains and colored and colorless apiculus. RESULTS: No statistically significant selection signatures were detected in both Wx and OsC1gene sequences. However, low level of selection that varied across the length of each gene was evident. The glutinous type varieties showed higher levels of nucleotide diversity at the Wx locus (π(tot) = 0.0053) than nonglutinous type varieties (π(tot) = 0.0043). The OsC1 gene revealed low levels of selection among the colorless apiculus varieties with lower nucleotide diversity (π(tot) = 0.0010) than in the colored apiculus varieties (π(tot) = 0.0023). CONCLUSIONS: The results revealed that functional mutations at Wx and OsC1genes considered to be associated with specific phenotypes do not necessarily correspond to the phenotypes in indigenous rice varieties in NE India. This suggests that other than previously reported genomic regions may also be involved in determination of these phenotypes. |
format | Online Article Text |
id | pubmed-4070345 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-40703452014-06-26 Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India Choudhury, Baharul Islam Khan, Mohammed Latif Dayanandan, Selvadurai BMC Genet Research Article BACKGROUND: During the domestication of crops, individual plants with traits desirable for human needs have been selected from their wild progenitors. Consequently, genetic and nucleotide diversity of genes associated with these selected traits in crop plants are expected to be lower than their wild progenitors. In the present study, we surveyed the pattern of nucleotide diversity of two selected trait specific genes, Wx and OsC1, which regulate amylose content and apiculus coloration respectively in cultivated rice varieties. The analyzed samples were collected from a wide geographic area in Northeast (NE) India, and included contrasting phenotypes considered to be associated with selected genes, namely glutinous and nonglutinous grains and colored and colorless apiculus. RESULTS: No statistically significant selection signatures were detected in both Wx and OsC1gene sequences. However, low level of selection that varied across the length of each gene was evident. The glutinous type varieties showed higher levels of nucleotide diversity at the Wx locus (π(tot) = 0.0053) than nonglutinous type varieties (π(tot) = 0.0043). The OsC1 gene revealed low levels of selection among the colorless apiculus varieties with lower nucleotide diversity (π(tot) = 0.0010) than in the colored apiculus varieties (π(tot) = 0.0023). CONCLUSIONS: The results revealed that functional mutations at Wx and OsC1genes considered to be associated with specific phenotypes do not necessarily correspond to the phenotypes in indigenous rice varieties in NE India. This suggests that other than previously reported genomic regions may also be involved in determination of these phenotypes. BioMed Central 2014-06-16 /pmc/articles/PMC4070345/ /pubmed/24935343 http://dx.doi.org/10.1186/1471-2156-15-71 Text en Copyright © 2014 Choudhury et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Research Article Choudhury, Baharul Islam Khan, Mohammed Latif Dayanandan, Selvadurai Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title | Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title_full | Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title_fullStr | Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title_full_unstemmed | Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title_short | Patterns of nucleotide diversity and phenotypes of two domestication related genes (OsC1 and Wx) in indigenous rice varieties in Northeast India |
title_sort | patterns of nucleotide diversity and phenotypes of two domestication related genes (osc1 and wx) in indigenous rice varieties in northeast india |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070345/ https://www.ncbi.nlm.nih.gov/pubmed/24935343 http://dx.doi.org/10.1186/1471-2156-15-71 |
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