tailieunhanh - Domestication in plants: A key to unexplored variability

Domestication is the process in which plants are genetically modified over time by humans for traits that are more advantageous or desirable for humans. A set of morphological, biochemical, and physiological traits that distinguishes domesticated plants from their wild progenitor is known as domestication syndrome. Reduction/loss of means of dispersal reduction/loss of dormancy, compact growth habit, earliness, gigantism, photoperiod insensitivity, reduction/loss of toxic substances is the major elements of domestication syndrome. Studying the crop domestication in detail will help us to uncover the hidden variability in crop wild relatives and can help in further crop improvement and thereby ensure the food security. | 2019 8 1 133-138 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 01 2019 Journal homepage http Review Article https Domestication in Plants A Key to Unexplored Variability A. Chinthiya and . Bhavyasree 1Center for Plant breeding and Genetics Tamil nadu Agricultural University Coimbatore-641003 India Corresponding author ABSTRACT Keywords Domestication Domestication syndromes Variability Crop wild relatives Progenitors Article Info Accepted 04 December 2018 Available Online 10 January 2019 Domestication is the process in which plants are genetically modified over time by humans for traits that are more advantageous or desirable for humans. A set of morphological biochemical and physiological traits that distinguishes domesticated plants from their wild progenitor is known as domestication syndrome. Reduction loss of means of dispersal reduction loss of dormancy compact growth habit earliness gigantism photoperiod insensitivity reduction loss of toxic substances is the major elements of domestication syndrome. Studying the crop domestication in detail will help us to uncover the hidden variability in crop wild relatives and can help in further crop improvement and thereby ensure the food security. Introduction The nomadic man tried hard to survive. He wandered all around to get the food. He hunted and collected the food. In that journey he began to keep some animals and plants with him. There arise the era of domestication. Domestication literally means bringing under human management it may be of plant or animal. This phenomenon later lead to agriculture changed the human life. The nomadic man started settlements eventually leading to civilizations. Plant domestication plays a major role in agriculture sector. What actually the domestication done with the plant is genetic modification for a character which is advantageous or desirable

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