Results 251 to 260 of about 859,450 (301)
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1976
The methodology of living plant collecting has changed very considerably in the last few decades. Not so long ago botanic gardens, arboreta and similar organisations considered that they were doing what was required of them if they grew a single accession of as many species as possible. Even if they possessed the facilities for conserving more than one
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The methodology of living plant collecting has changed very considerably in the last few decades. Not so long ago botanic gardens, arboreta and similar organisations considered that they were doing what was required of them if they grew a single accession of as many species as possible. Even if they possessed the facilities for conserving more than one
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Economic Botany, 1984
The range of genetic resources available for the improvement of grain legumes varies greatly in both its extent and accessibility. This can be related to the biosystematic relationships and the geographic dispersion of the crops together with the evolutionary age of the taxa from which they arose and related taxa.
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The range of genetic resources available for the improvement of grain legumes varies greatly in both its extent and accessibility. This can be related to the biosystematic relationships and the geographic dispersion of the crops together with the evolutionary age of the taxa from which they arose and related taxa.
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Journal of Crop Production, 1997
Summary For many crop species, genetic uniformity is a result of modern breeding and farming practices. Common wheat (Triticum aestivum L.) is an exception, having been a genetically narrow species throughout its entire existence. This paper discusses the evolutionary bottlenecks through which today's wheat germplasm has descended, and the ways in ...
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Summary For many crop species, genetic uniformity is a result of modern breeding and farming practices. Common wheat (Triticum aestivum L.) is an exception, having been a genetically narrow species throughout its entire existence. This paper discusses the evolutionary bottlenecks through which today's wheat germplasm has descended, and the ways in ...
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Royal Society of London. Philosophical Transactions B. Biological Sciences, 2017
In biological systems, evolutionary innovations can spread not only fromparent to offspring (i.e. vertical transmission), but also ‘horizontally’ between individuals, who may or may not be related. Nowhere is this more apparent than in bacteria, where novel ecological traits can spread rapidly within and between species through horizontal gene transfer
Hall, James P.J. +2 more
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In biological systems, evolutionary innovations can spread not only fromparent to offspring (i.e. vertical transmission), but also ‘horizontally’ between individuals, who may or may not be related. Nowhere is this more apparent than in bacteria, where novel ecological traits can spread rapidly within and between species through horizontal gene transfer
Hall, James P.J. +2 more
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New Scientist, 2013
Three-parent babies could soon become a fact of life. The techniques are designed to prevent devastating mitochondrial diseases, which affect thousands of people. Whatever the UK's Human Fertilisation and Embryology Authority decides, there seems to be little doubt that the techniques will be used somewhere soon, whether they are regulated or not ...
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Three-parent babies could soon become a fact of life. The techniques are designed to prevent devastating mitochondrial diseases, which affect thousands of people. Whatever the UK's Human Fertilisation and Embryology Authority decides, there seems to be little doubt that the techniques will be used somewhere soon, whether they are regulated or not ...
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SSRN Electronic Journal, 2010
In the new eugenics, the end of our species as we know it is eagerly anticipated. We are fast approaching an evolutionary dead end and only the miracles of genetic engineering will save us from extinction. But while the new eugenicists approach these innovations with joy and optimism, many others look to them with dread and repugnance.
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In the new eugenics, the end of our species as we know it is eagerly anticipated. We are fast approaching an evolutionary dead end and only the miracles of genetic engineering will save us from extinction. But while the new eugenicists approach these innovations with joy and optimism, many others look to them with dread and repugnance.
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Pool fire dynamics: Principles, models and recent advances
Progress in Energy and Combustion Science, 2023Xiaolei Zhang, Ran Tu, Longhua H Hu
exaly
Microbial single-cell RNA sequencing by split-pool barcoding
Science, 2021Anna Kuchina +2 more
exaly