scholarly journals THE DEVELOPED AND THE DEVELOPING WORLD IN THE BIODIVERSITY REGIME

Author(s):  
Fahima Khanum

Human societies have a major impact on their environment and with the tendency to exploit inexhaustible resources man has led to the degradation of these resources. Environmental issues became the focus of international concern due to a rising awareness of the risks and implications of international environmental problems. Due to concerns regarding species extinction, depletion of genetic varieties, destruction of natural habitats, deforestation and disruptions in atmosphere there was an increased interest in preserving biodiversity. Conservation and protection of biodiversity became important as biodiversity provides the human societies with a number of important services, which include enhancing the productivity of natural and agricultural ecosystems, providing insurance against attacks on agricultural crops by pathogens, and providing us with valuable knowledge of novel genetic and molecular forms. Biodiversity offers genetic resources for food and agriculture. Living organisms provide irreplaceable environmental services upon which humanity is critically dependent, such as keeping soil fertile, absorbing pollution, breaking down waste, and pollinating crops. One study estimates that the value of 17 such natural services is between US $16-54 trillion per year, with an average of US $33 trillion per year

2020 ◽  
Vol 215 ◽  
pp. 02003
Author(s):  
Eleonora Tsoraeva ◽  
Alan Bekmurzov ◽  
Soslan Kozyrev ◽  
Alan Khoziev ◽  
Aslanbek Kozyrev

The paper deals with the environmental issues of agriculture. Examples are given that pose a threat to the vital activity of living organisms from various types of agricultural and human activities. The subject of the study is the analysis of environmental issues arising from the intensification of the development of agricultural industry. Intensive agricultural activity leads to pollution of surface rivers, lakes, seas and groundwater, soil degradation and aquatic ecosystems; violation of the water regime in large areas during drainage and irrigation; desertification due to wind erosion; destruction of natural habitats of living organisms of flora and fauna. An urgent problem of agriculture is a decrease in the content of vitamins and microelements in crop production and the accumulation of harmful substances in them. The reasons for these negative processes are soil degradation, intensification of agricultural production.


2011 ◽  
Vol 9 (2) ◽  
pp. 193-196 ◽  
Author(s):  
Jeremy Dkhar ◽  
Suman Kumaria ◽  
Pramod Tandon

Sustainable utilization of plant genetic resources for food and agriculture has been increasingly discussed at both national and international forums. Besides exploitation, conservation of plant genetic resources has become an integral part of these discussions. Conservation aims at maintaining the diversity of living organisms, their habitat and the interrelationship between organisms and their environment. For achieving such goals, appropriate conservation strategies have to be adopted. Determining the genetic makeup of a particular plant species is of critical importance when planning a suitable conservation strategy. In this study, we sequenced the chloroplast trnK intron, matK and rbcL gene aimed at understanding the rarity of Nymphaea tetragona, a critically rare and endangered plant of India found at only one location. We extended our investigation to other Nymphaea species such as N. nouchali, N. pubescens and N. rubra that are commonly available throughout India. Interestingly, matK gene of N. tetragona revealed high number of non-synonymous substitutions. Molecular evolutionary analysis indicated that three of these sites may be under mild selective pressures. Such adaptive changes at the DNA and protein sequence level of matK gene may have been associated with the colonization of N. tetragona, suggesting that it could have migrated from China.


2021 ◽  
pp. 459-468
Author(s):  
Chikelu Mba ◽  
Hans Dreyer

Abstract The 50% increase in food production required to feed an ever-growing global population, and which must be attained under dire climate change scenarios and other constraints, will not be attained with a 'business as usual' mindset. For crops, the current cultivars will have to be replaced by ones that are more nutritious, stress tolerant and input-use efficient and that would produce higher yields with less external input. Generating such varieties requires significant efficiency enhancements to the conservation and characterization of plant genetic resources for food and agriculture and their use in plant breeding. Genome editing holds great promise in this regard. Its rapid adoption as a relatively cheap and rapid means to generate precise and predictable heritable variations and its universal applicability mirror the developments of the closely associated gene drive. Large amounts of digital sequence data are also increasingly available, while the field of synthetic biology has been expanding rapidly. This all holds great promise for improving and broadening the genetic base of crop varieties for the enhancement of crop productivity without damaging the environment. However, the pace of the scientific and technological developments for these methods has far outstripped that of the requisite policy regimes. The demonstrable potentials notwithstanding, the developments have not been universally accepted. The ongoing debates include whether the products of genome editing, with or without gene drive, should be considered living modified organisms and, if so, subject to the international framework, the Cartagena Protocol on Biosafety to the Convention on Biological Diversity. Another debate is whether digital sequence information should be subject to some access- and-benefit sharing regime, considering that, with the power of synthetic biology, products previously harnessed only from living organisms can now be produced in the laboratory once the DNA sequence is available. There are also debates about ethics. In order to avoid the mistakes of the past, a call is made for evidence-based multi-stakeholder (including especially intergovernmental) dialogues on the safety, fairness and ethics of the use of these emerging biotechnologies, as the stakes are extremely high.


2016 ◽  
Vol 8 (6) ◽  
pp. 65-79
Author(s):  
Atieno Otieno Gloria ◽  
Wasswa Mulumba John ◽  
Seyoum Wedajoo Aseffa ◽  
Jae Lee Myung ◽  
Kiwuka Catherine ◽  
...  

2011 ◽  
Vol 71 (1 suppl 1) ◽  
pp. 327-335 ◽  
Author(s):  
CJR Alho ◽  
J Sabino

The Pantanal's biodiversity constitutes a valuable natural resource, in economic, cultural, recreational, aesthetic, scientific and educational terms. The vegetation plus the seasonal productivity support a diverse and abundant fauna. Many endangered species occur in the region, and waterfowl are exceptionally abundant during the dry season. Losses of biodiversity and its associated natural habitats within the Pantanal occur as a result of unsustainable land use. Implementation of protected areas is only a part of the conservation strategy needed. We analyse biodiversity threats to the biome under seven major categories: 1) conversion of natural vegetation into pasture and agricultural crops, 2) destruction or degradation of habitat mainly due to wild fire, 3) overexploitation of species mainly by unsustainable fishing, 4) water pollution, 5) river flow modification with implantation of small hydroelectric plants, 6) unsustainable tourism, and 7) introduction of invasive exotic species.


2011 ◽  
Vol 47 (Special Issue) ◽  
pp. S43-S48 ◽  
Author(s):  
A. Börner ◽  
K. Neumann ◽  
B. Kobiljski

It is estimated that world-wide existing germplasm collections contain about 7.5 million accessions of plant genetic resources for food and agriculture. Wheat (Triticum and Aegilops) represents the biggest group comprising 900 000 accessions. However, such a huge number of accessions is hindering a successful exploitation of the germplasm. The creation of core collections representing a wide spectrum of the genetic variation of the whole assembly may help to overcome the problem. Here we demonstrate the successful utilisation of such a core collection for the identification and molecular mapping of genes (Quantitative Trait Loci) determining the agronomic traits flowering time and grain yield, exploiting a marker-trait-association based technique. Significant marker-trait associations were obtained and are presented. The intrachromosomal location of many of these associations coincided with those of already identified major genes or quantitative trait loci, but others were detected in regions where no known genes have been located to date.


2006 ◽  
Vol 4 (1) ◽  
pp. 54-63 ◽  
Author(s):  
Niels P. Louwaars ◽  
Eva Thörn ◽  
José Esquinas-Alcázar ◽  
Shumin Wang ◽  
Abebe Demissie ◽  
...  

Applied genetics combined with practical plant breeding is a powerful tool in agricultural development and for food security. The Green Revolution spurred the world's potential to meet its food, feed and fibre needs at a time when vast regions were notoriously food-insecure. Subsequent adaptations of such strategies, from the late 1980s onwards, in order to develop new plant varieties in a more participatory way, have strengthened the focus on applying technology to farmers' diverse needs, feeding research results into a variety of seed systems. During these developments, there were no major legal impediments to the acquisition of either local or formal knowledge or of the building blocks of plant breeding: genetic resources. The emergence of molecular biology in plant science is creating a wealth of opportunities, both to understand better the limitations of crop production and to use a much wider array of genetic diversity in crop improvement. This ‘Gene Revolution’ needs to incorporate the lessons from the Green Revolution in order to reach its target groups. However, the policy environment has changed. Access to technologies is complicated by the spread of private rights (intellectual property rights), and access to genetic resources by new national access laws. Policies on access to genetic resources have changed from the concept of the ‘Heritage of Mankind’ for use for the benefit of all mankind to ‘National Sovereignty’, based on the Convention on Biological Diversity, for negotiated benefit-sharing between a provider and a user. The Generation Challenge Programme intends to use genomic techniques to identify and use characteristics that are of value to the resource-poor, and is looking for ways to promote freedom-to-operate for plant breeding technologies and materials. Biodiversity provides the basis for the effective use of these genomic techniques. National access regulations usually apply to all biodiversity indiscriminately and may cause obstacles or delays in the use of genetic resources in agriculture. Different policies are being developed in different regions. Some emphasize benefit-sharing, and limit access in order to implement this (the ‘African Model Law’), while others, in recognition of countries' interdependence, provide for facilitated access to all genetic resources under the jurisdiction of countries in the region (the Nordic Region). There are good reasons why the use of agricultural biodiversity needs to be regulated differently from industrial uses of biodiversity. The International Treaty on Plant Genetic Resources for Food and Agriculture, which entered into force in 2004, provides for facilitated access to agricultural genetic resources, at least for the crops that are included in the Treaty's ‘Multilateral System of Access and Benefit-sharing’. Ratification of the Treaty is proceeding apace, and negotiations have entered a critical stage in the development of practical instruments for its implementation. Although the scope of the Treaty is all plant genetic resources for food and agriculture, there are important crops that are not covered by its Multilateral System. Humanitarian licences are being used to provide access for the poor to protected technologies: countries may need to create such a general humanitarian access regime, to ensure the poor have the access they need to agricultural genetic resources.


2005 ◽  
Vol 119 (2) ◽  
pp. 237 ◽  
Author(s):  
Paul M. Catling ◽  
Susan Carbyn

Examination of air photos from 1930, 1970 and 2002 revealed stands of the European Scots Pine (Pinus sylvestris) invading remnants of natural Corema (Corema conradii) heathland in the Annapolis valley. To document the impact of the introduced pines, four natural habitats were compared with two adjacent habitats already invaded by the pines. All surveyed habitats had been dominated by Corema heath based on air photos taken in 1930. Twenty 1 m2 quadrats were used to record presence and cover of vascular plants at each site. The invasive alien pines reduce the native cover to 12%. Vascular plant biodiversity is reduced to less than 42% and the cover of the heathland dominant, Corema conradii, is reduced from over 100 % to less than 2%. with Deschampsia flexuosa becoming the dominant species. The modified ecosystem and loss of biodiversity has economic impacts through loss of pollinators of agricultural crops and loss of germplasm of native crop relatives.


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