Results 251 to 260 of about 88,997 (296)
Clonal crops show structural variation role in domestication
Nature Plants, 2019 The efficient use of clonal reproduction through vegetative propagation is one of the underlying reasons for the great success of the angiosperms, enabling stabilized and adapted phenotypes to rapidly expand into suitable environments1. This stability of phenotype has made clonal systems attractive for domestication, accounting for about half of all ...
Allaby, Robin G.
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Transcriptomic variation in a coral reveals pathways of clonal organisation
Marine Genomics, 2009A microarray study was undertaken to examine the potential for clonal gene expression variation in a branching reef building coral, Acropora millepora. The role of small-scale gradients in light and water flow was examined by comparing gene expression levels between branch elevation (tip and base) and position (centre and edge) of replicate coral ...
Henrik Bjørn Nielsen +2 more
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Clonal variation in temperature response of photosynthesis in tea
Plant Science, 1998Abstract The effect of temperature on the photosynthetic characteristics of six tea clones (viz., 6017, B/5/63, B/6/61, B/6/62, CCS-26 and T-78), originally from different agro-climatic zones in India, was studied to determine the clonal variation in photosynthesis, if any.
Lok Man S Palni
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Molecular Ecology, 2001 We studied the structure of genetic variation (at both ramet- and genet-level) and clonal diversity within and among populations in the four closely related arctic clonal sedges Carex bigelowii, C. ensifolia, C. lugens and C.
Ingibjorg S Jonsdottir +1 more
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Clonal and non-clonal chromosome aberrations and genome variation and aberration
Genome, 2006The theoretical view that genome aberrations rather than gene mutations cause a majority of cancers has gained increasing support from recent experimental data. Genetic aberration at the chromosome level is a key aspect of genome aberration and the systematic definition of chromosomal aberrations with their impact on genome variation and cancer genome ...
Henry H Q, Heng +5 more
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An overview on soma clonal variation
ACADEMICIA: An International Multidisciplinary Research Journal, 2021AbstractPlant breeders may use somaclonal variation as a technique. The study looks at the best places to use this technology and the variables that restrict or enhance its chances of success. (1) the degree of deviation from ordered development, (2) the genotype, (3) growth regulators, and (4) the tissue supply are the major variables that affect the ...
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Genomic variation in Trypanosoma cruzi clonal cultures
Parasitology Research, 1996Spontaneous changes in restriction DNA profiles and pulsed-field gel electrophoresis (PFGE) patterns, along with a concomitant loss of infectivity, were observed in infective clones of Trypanosoma cruzi strain Y either following a number of passages during the exponential growth phase of after subcloning in liver infusion tryptone (LIT) medium using as
A M, Alves +2 more
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Variation and Clonal Structure in a Unisexual Fish
The American Naturalist, 1978A genetic analysis of population structure in the unisexual fish, Poeciliopsis monacha-lucida, was conducted using protein phenotypes encoded by 22 loci. The all-female populations arose by hybridization between P. monacha and P. lucida in narrow zones where their ranges overlap. The unisexual hybrids are sustained by mating with males of P. lucida and
Robert C. Vrijenhoek +2 more
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Clonal Variation in Cereals and Forage Grasses
1998Clonal changes in tissue culture have proved to be a useful method for creating desirable variants in most cereal crops. Variants include changes in physiological mechanisms, agronomic characteristics, plant type, and resistance to pests and stress conditions.
M. C. Rush +5 more
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Clonal and population variation in jellyfish symmetry
Journal of the Marine Biological Association of the United Kingdom, 1999While it is generally assumed that jellyfishes (Cnidaria: Scyphozoa) are stably tetramerous, variation in symmetry (i.e. unimerous to octamerous) can be observed in most populations at a rate of approximately 2%, but sometimes as high as 10%. This type of variation has been observed among clonemates during strobilation in five taxa, namely Aurelia ...
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