Genetic similarity and diversity of Asian catfish Clarias batrachus populations collected from hatchery and wild stocks were examined using randomly amplified polymorphic DNA polymerase chain reaction (RAPD-PCR). Out of l6 primers tested, 5 primers produced 1376 RAPD bands ranging from 8.1 to 13.71 polymorphic bands per primer. The polymorphic bands in these populations ranged from 56.4% to 59.6%. Polymorphic bands per lane within populations ranged from 4.88 to 5.3%. The similarity within the population from wild varied from 0.40 to 0.83 with a mean (±SE) of 0.57 ±0.08. The level of band sharing values was 0.59 ±0.07 within the catfish population from hatchery. However, in view of band sharing values, polymorphic bands and also the specific major bands genetic differentiation between these populations were present even if band sharing (BS) values were somewhat marginally different and good genetic divergence existed in both catfish populations. Therefore, the number of RAPD polymorphisms identified in this study may be sufficient to permit estimating genetic similarity and diversity.
Cotton is a major fiber and oil seed crop in many tropical areas of the world and a major cash crop of Pakistan. The cotton production had decreased consecutively for the last few years due to various types of biotic and abiotic stresses. Cotton leaf curling disease (CLCuD) is the major threat to cotton production and quality in many cotton producing countries including Pakistan. The only way to tackle this challenge is to develop new genotypes with resistant to CLCUD and enhance the yield potential of available genotypes. Breeding strategies for high potential varieties made on the basis of scientific and agronomic knowledge is good way to achieve this goal. Both quality and quantity of fiber are important targets to improve. Genetic analysis is one of the best tools to exploit the potential of species for application on commercial scale.
The book ´Root Biology´ written by experts in the field, covers latest research on cellular, genetic, physiological and ecological developmental facets of root growth as well as the interaction of root with an array of microbes whether for the establishment of symbiosis, increasing plant growth or protecting plant from pathogens/attackers. Plant roots provide an excellent model to study physiological, developmental and metabolic processes at a system level. Root system architecture - an excellent creation of nature, is closely interconnected with the availability of soil nutrients. Several strategies including biotechnological interventions are gaining interest and importance for sustainable food production and enhanced resource acquisition. Such strategies have largely focused on root traits for efficient utilization of soil resources. The biotechnological application of root biology is expected to promote the production of food while maintaining ecologically and economically sustainable production systems. With a fortune of information on technical and experimental aspects useful in the laboratory, this extensive book is a valuable resource for researchers, academician and students in the broad field of microbiology, plant and fungal biology.
Mother deer that grieve? Horses that feel shame? Squirrels that adopt their grandchildren? We humans tend to assume that we are the only living things able to experience feelings intensely and consciously. But have you ever wondered what´s going on in an animal´s head? More and more researchers are realising that animals in fact experience a rich emotional life. Acting as our interpreter of the animal world and of the fascinating science, Peter Wohlleben brings this new research to life with his own observations of his favourite creatures. From the leafy forest floor to the inside of a bee hive, The Inner Life of Animals shows us microscopic levels of observation as well as forcing us to confront the big philosophical, ethical and scientific questions. We hear the stories of a grateful humpback whale, of a hedgehog who has nightmares, and of a magpie who commits adultery; we meet bees that plan for the future, pigs who learn their own names and crows that go tobogganing for fun. And at last we find out why wasps exist. Our fellow creatures are not mindless automatons driven by an inflexible genetic code, but individuals with personality and feeling. The Inner Life of Animals will show you these living things in a new light and will open up the animal kingdom like never before.
Microeconomics of Wild Coffee Genetic Resources Conservation in Southwestern Ethiopia:Forest zoning and economic incentives for conservation Institutioneller Wandel der Landwirtschaft und Ressourcennutzung /Institutional Change in Agriculture and Natural Resources. 1., Aufl. Aseffa S Wedajoo
Institutional Interplay in International Environmental Governance:Policy Interdependence and Strategic Interaction in the Regime Complex on Plant Genetic Resources for Food and Agriculture Institutioneller Wandel der Landwirtschaft und Ressourcennutzung /Institutional Change in Agriculture and Natural Resources. 1., Aufl. Stefan Jungcurt