how to conserve genetic diversity in plants

Conservation genetics is an interdisciplinary subfield of population genetics that aims to understand the dynamics of genes in populations principally to avoid extinction. In addition to storing genetic material from present crops, it is vital to conserve the bro-ad genetic diversity of crop wild relatives, which are important for breeding plants with new characteristics, such as … conservation of the genetic diversity of crops, farm animals and trees. Just nine crops (wheat, rice, maize, barley, sorghum/millet, potato, sweet potato/yam, sugar cane and soybean) account for over 75 percent of the plant kingdom's contribution to human dietary energy. Guidance is particularly needed on how many living plants are necessary to conserve a threshold level of genetic diversity in ex situ collections. For example, animals can be carriers of a gene for an inherited disease, but not show any symptoms. trailer << /Size 100 /Info 60 0 R /Root 62 0 R /Prev 185313 /ID[] >> startxref 0 %%EOF 62 0 obj << /Type /Catalog /Pages 58 0 R /PageLabels 56 0 R >> endobj 98 0 obj << /S 123 /L 209 /Filter /FlateDecode /Length 99 0 R >> stream In order to conserve biodiversity in plants, it is important to targets three independent levels that include ecosystems, species and genes. The natural world has several ways of preserving or increasing genetic diversity. jQuery('#shs_prev').click(function(){ Different breeds of dogs. }). 0000032631 00000 n Genetic diversity is important for two reasons. Smallholder farmers can use diversity of crops as a resource to adapt their crops to environmental changes. More worrying is that among the many threatened species are wild relatives of our crops; species that could contribute invaluable traits to future crop varieties. FAO is particularly concerned that such trend threatens the world’s food security and efforts must be made to conserve the plant diversity that are genetically related to the crops that we grow and eat. The participants are also expected to become trainers of others in their respective organisations and countries. Joyce Maschinski and Christina Walters . It works together with many different actors, such as breeders' organisations, networks of farmers, nature reserve }); Certainly the value of genetic diversity is immense, and host plant resistance is just one example. } 0000011238 00000 n var item_width = jQuery('#shs_slider_ul .shs_items').outerWidth(); jQuery('#shs_slider_ul:not(:animated)').animate({'left' : '-300px'},1000,function(){});

function shs_animate_next(){ To conserve the diversity found within species of cultivated plants, experts employ a strategy that combines ex situ conservation (storing diversity in genebanks) with in situ on-farm conservation in matching agro-ecosystems. Headquartered in Port Moresby, it has offices in Five (5)centres: Lae, Mount Hagen, Kokopo, Madang and Goroka. We investigated this question for 11 taxa across five genera. Domesticated animals have provided people with food, fiber, transport, and-draft power for thousands of years, and during the past 200 years, they have been modified by selective breeding to serve better the changing needs of humanity. This loss of genetic diversity in plant crops and animal breed is dangerous because it makes our food supply more vulnerable. 0000012237 00000 n By JAMES LARAKI THE loss of plant genetic diversity is considered one of today’s most serious environmental concerns by the Food and Agricultural Organisation (FAO). FAO, established by the United Nations, is concerned that if the current trend persist, as many as half of all plant species could face extinction. var total_width=jQuery('#shs_slider_ul .shs_items').length; 0000001854 00000 n var shs=setInterval(function(){ shs_animate(); },7000); In a report released recently, FAO warns that the loss of biodiversity will have a major impact on the ability of humankind to feed itself in the future, a situation it says is far more serious for inhabitants of developing countries. To address this issue, the National Agricultural Research Institute (NARI) has been conducting a series of training on capacity development in conservation and utilisation of plant genetic resources (PGR) in the region since 2010. jQuery('#shs_next').click(function(){ } The areas covered in these series are focused on PGR collection and maintenance, characterisation and evaluation, conservation, screening and evaluation, pre-breeding techniques and breeding and utilisations. jQuery('#shs_slider_ul').css({'left':'-300px'}); 0000001203 00000 n 0000008200 00000 n 0000008605 00000 n One solution for protecting PSESPs is the creation of small-scale reserves or Plant Micro-Reserves (PMR; Laguna, 2001, Laguna et al., 2004). … jQuery('#shs_slider_ul:not(:animated)').animate({'left' : left_indent},1000, To conserve is our responsibility Today we may not as yet know everything about future demands for crop varieties. Plant genetic resources can be conserved both in-situ and ex-situ. Genetic diversity is important to a species’ fitness, long-term viability, and ability to adapt to changing environmental conditions. 0000006974 00000 n Genetic diversity of M. subcordatum is compared with 12 other Memecylon species and threatened plants . 0000005855 00000 n jQuery(document).ready(function() { Among oceanic plankton, viruses aid in the genetic shifting process. Growing concerns for the loss of plant genetic diversity and species’ extinctions, as well as advancing know-how to make successful conservation collections, motivates CPC Network scientists to collect seeds from wild populations and bank them..

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