Some Conspicuous Traits in Domesticated Rice Oryza Sativa, Due To Recessive Alleles
Journal Title: Journal of Plant Science and Research - Year 2016, Vol 3, Issue 1
Abstract
Evolutionarily organisms are bestowed with salient morphological features which are considered to be an outcome of activity of functional gene products. However, there are several important features present in organisms owing to recessive alleles in specific gene loci. Interestingly, prevalence of such features due to recessive alleles of gene(s) raises intriguing questions in regard to evolution of the functional alleles in organisms! To have some understanding of this unique phenomenon, we examined four frequently confronted recessive traits in rice plant (Oryza sativa) such as (i) fragrance (ii) semi-dwarf height (iii) resistance to pathogens and (iv) non-seed shattering feature and discussed in brief the genetics, biochemistry and evolutionary significance of these traits in rice. These important traits in rice are due to mutations in genes such as BADH2, sd1, Xa13 and seed-shattering loci respectively, that otherwise encode essential functional attributes in plant systems. Genes with paralogs possibly attribute to recessive traits through their differential expression patterns. New facts are evolving on role of epigenetic mutations conferring heritable changes in gene expression that are not due to changes in the underlying gene sequence.
Authors and Affiliations
Anjan Barman
Keywords
Related Articles
- EP ID EP326371
- DOI -
- Views 106
- Downloads 0
Isolation and Identification of Pathogenic Fungi Causing Deterioration of Lettuce Plant (Lactuca sativa) A Case Study of Yankaba and Sharada Vegetables Markets
Experiment was carried out to determine the fungal pathogens responsible for post-harvest losses of Lettuce on sale at Yankaba, and Sharada, market for a period of three months (September, 2014 to December, 2014). Sample...
A Review of Access and Benefit Sharing (ABS) of Genetic Resources and Associated Traditional Knowledge in Ethiopia: Status, Trends and Lessons Learned
Ethiopia has ratified the Convention on Biological Diversity (CBD) and International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) as well as adopted African Model Law and Bonn Guidelines. And base...
Modern Pollen Assemblages of Surface Samples from Tropical Deciduous Forest of Assam, Northeast India: A Window to Palaeoclimatic Interpretation
Palynological assessment of 20 surface samples from the Panchratna reserve forest of Goalpara District, western Assam has been carried out to explore the relationship between modern pollen assemblages and contemporary ve...
Seed the Source of Systemic Botrytiscinerea in Lettuce (Lactuca sativa L.)
Studying the epidemiology of the wide spread of necrotrophic pathogen Botrytis cinerea is of economic importance in the production and seed export of lettuce and other horticultural crops. This study showed that seed is...
Fungal Spoilage of Stored Fruits of Carica papaya L. and Vitis vinifera L. and Fungitoxicity of Plants Extracts
The sample of fruits of Carica papaya L. and Vitis vinifera L. were collected from fruit vendors, fruit shops and mandies of Gorakhpur and bought to the laboratory in pre sterilized polythene bags. A total of 36 fungi as...