Results 201 to 210 of about 17,851 (240)
Molecular Ecology, 2008 The Dactylorhiza incarnata/maculata complex (Orchidaceae) was used as a model system to understand genetic differentiation processes in a naturally occurring polyploid complex with much of ongoing diversification and wide distribution in recently ...
Mikael Hedren, Sofie Nordstrom
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New Phytologist, 2014 Quaternary climatic oscillations greatly influenced the distribution and pattern of biodiversity in the Northern Hemisphere. Here we examine how such oscillations in South East Asia may have affected the demographic and evolutionary history of a ...
Yan-Ping Guo +2 more
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Polyploid Complexes Within the Genus Galium
Planta Medica, 1981Anthraquinones of the shikimate-glutarate-mevalonate pathway occur generally in the roots of Galium species. In order to use this chemical character of the genus Galium on the level of polyploid complexes, a chemical analysis has been carried out of anthraquinones which accumulate in the roots of cytologically defined Galium album Mill.
J, Kuiper, R P, Labadie
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Microsatellite-AFLP for genetic mapping of complex polyploids
Genome, 2003In spite of the economical relevance of polyploid crops, genetic mapping of these species has been relatively overlooked. This is because of intrinsic difficulties such as the uncertainty of the chromosome behavior at meiosis I and the need for very large segregating populations.
ALBERTINI, Emidio +5 more
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Ulmus americana (Ulmaceae) is a polyploid complex
American Journal of Botany, 2011• Premise of the study: Exotic diseases are threatening many North American tree species, and management of diseases requires understanding the biology of the host as well as the pathogen. Ulmus americana is a widespread dominant tree of eastern North America that has been widely planted as an ornamental and shade tree.
Alan T, Whittemore, Richard T, Olsen
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Plastid DNA variation in the Dactylorhiza incarnata/maculata polyploid complex and the origin of allotetraploid D. sphagnicola (Orchidaceae) [PDF]
Molecular Ecology, 2003 To obtain further information on the polyploid dynamics of the the Dactylorhiza incarnata/maculata polyploid complex and the origin of the allotetraploid D.
Hedrén, Mikael
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Nuclear DNA content in the polyploid complex Turnera ulmifolia (Turnera L., Passifloraceae) [PDF]
Plant Systematics and Evolution, 2011 Turnera ulmifolia constitutes a well-studied polyploid complex with allo- and autopolyploid species ranging from 2 to 8x. Flow cytometry was used to determine nuclear DNA content, and to estimate 2C- and 1Cx-values with the aim of analysing the genome ...
Alicia Lopez +2 more
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Circadian regulation of the transcriptome in a complex polyploid crop
2021Abstract The circadian clock is a finely balanced time-keeping mechanism that coordinates programmes of gene expression. It is currently unknown how the clock regulates expression of homoeologous genes in polyploids. Here, we generate a high-resolution time-course dataset to investigate the circadian balance between ...
Hannah Rees +10 more
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The annual species ofAdonis (Ranunculaceae)?a polyploid complex
Plant Systematics and Evolution, 1989The five annual species ofAdonis L., sect.Adonis, growing in Israel, form a series of diploid, tetraploid and hexaploid species. Their somatic chromosome numbers are 2n = 16 inA. annua L.,A. dentataDel. andA. palaestinaBoiss., 2n = 32 inA. microcarpa DC., 2n = 48 inA. aestivalis L.; counts forA. dentata, A. palaestina andA.
Chaia C. Heyn, Batia Pazy
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Karyosystematics of thePhleum alpinum polyploid complex (Poaceae)
Plant Systematics and Evolution, 1996The karyotypes of three taxa from thePhleum alpinum group of sect.Phleum (P. alpinum subsp.rhaeticum, 2n = 14,P. commutatum, 2n = 28, and informally namedP. “commutatum”, 2n = 14) were investigated by Giemsa C-banding. The overall similarity of diploid genomes suggests thatP. alpinum subsp.rhaeticum andP.
Andrzej Joachimiak, Adam Kula
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