Implications of hybridisation and cytotypic differentiation in speciation assessed by AFLP and plastid haplotypes : a case study of Potentilla alpicola La Soie [PDF]
Background: Hybridisation is presumed to be an important mechanism in plant speciation and a creative evolutionary force often accompanied by polyploidisation and in some cases by apomixis. The Potentilla collina group constitutes a particularly suitable
Dobeš, Christoph +2 more
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O objetivo deste trabalho foi estudar a citogenética e a morfologia do saco embrionário dos clones EB1 (Manihot esculenta Crantz) e EB12 (geração F3 de M. esculenta x M. glaziovii Muell), dos híbridos F1 e F2 de M. neusana Nassar x M.
Evie dos Santos de Sousa
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Evolutionary history of Hypericum perforatum L. [PDF]
The genus Hypericum is a highly diverse group of about 500 species. Among the Eurasian taxa, Hypericum perforatum L. and H. maculatum Crantz are representative examples with a largely overlapping distribution area in Central Europe.
Scheriau, Charlotte Luise
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Ontogenetically-regulated male sterility in tissue culture - induced and spontaneous sorghum mutants [PDF]
Variability of male fertility expression in the AS-1 line, a somaclonal variant obtained from tissue culture of CMS-plant, and in the progeny of revenant '124-1' obtained from fertile tiller, which developed on CMS-plant transferred from the field to the
Belyaeva E.V., Elkonin L.A.
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Widening the gene pool of sexual tetraploid bahiagrass: Generation and reproductive characterization of a sexual synthetic tetraploid population [PDF]
The improvement of bahiagrass, Paspalum notatum Flüggé, has been inhibited by reduced levels of genetic diversity in sexual tetraploid germplasm. A few experimental sexual tetraploid genotypes (ESTGs) have been generated by chromosome doubling, but these
Acuña, Carlos Alberto +6 more
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Construction of a preliminary genetic linkage map of yerba mate (Ilex paraguariensis) [PDF]
Las hojas de la yerba mate se utilizan para la preparación del mate, una infusión de profunda raigambre histórica, social y cultural en Sudamérica.
Espasandin, Fabiana Daniela +7 more
core
Genetic fine-mapping of DIPLOSPOROUS in Taraxacum (dandelion; Asteraceae) indicates a duplicated DIP-gene [PDF]
Background DIPLOSPOROUS (DIP) is the locus for diplospory in Taraxacum, associated to unreduced female gamete formation in apomicts. Apomicts reproduce clonally through seeds, including apomeiosis, parthenogenesis, and autonomous or pseudogamous ...
Bakx-Schotman, Tanja +3 more
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Reproduction mode and apospory expressivity of selected hybrids of Paspalum notatum Flügge [PDF]
Paspalum notatum Flüggé (bahiagrass) is the most important forage grass in the native grasslands of southern Brazil; the native germplasm is tetraploid and apomictic.
Dall'Agnol, Miguel +4 more
core
Genetic Control of Apospory in Apomictic Paspalum Species.
The genetic control of aposporous apomixis in Paspalum was investigated by determination of the reproductive mode of the progeny from a cross of the sexual, self-incompatible tetraploid, P. ionanthum by the facultative apomict, P. cromyorrhizon. One hundred and sixty-nine progeny were assessed using embryological analysis, of these, 127 were shown to ...
Eric J. Martinez +2 more
openaire +2 more sources
The use of retrotransposon-based molecular markers to analyze genetic diversity [PDF]
Molecular markers play an essential role in all aspects of genetics, modern plant breeding, in human forensics, for map-based cloning of genes, ranging from the identification of genes responsible for desired traits to the management of backcrossing ...
Kalendar, Ruslan
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