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Cytogenetic studies in herbertia sw. (iridaceae)
(University Florence Botany Institute, 2009-12)
Conventional Feulgen staining, CMA/DAPI banding and FISH with 18-5.8-26S rDNA probe were used to determine chromosome numbers, karyotypes and physical position of GC or AT rich heterochromatin and rDNA sites in three South ...
Cryptic genetic diversity in Solanum elaeagnifolium (Solanaceae) from South America
(Csiro Publishing, 2018-11)
Solanum elaeagnifolium is a global invasive weed that is polyploid in the South American range. Our aim was to establish the origin and distribution of these polyploid lineages, together with their relationship with the ...
Heterochronic reproductive developmental processes between diploid and tetraploid cytotypes of Paspalum rufum
(Oxford University Press, 2019-05)
BACKGROUND AND AIMS: Apomixis is an asexual reproductive mode via seeds that generate maternal clonal progenies. Although apomixis in grasses is mainly expressed at the polyploid level, some natural diploid genotypes of ...
Effect of single and combined treatments with MPF or MAPK inhibitors on parthenogenetic haploid activation of bovine oocytes
(Institute of Animal Reproduction and Food Research, 2019-12)
In bovine, correct oocyte artificial activation is a key step in ICSI and other reproductive biotechnologies, and still needs to be improved. The current study was designed to compare the activating efficiency of ionomycin ...
Cytological diploidization of paleopolyploid genus Zea: Divergence between homoeologous chromosomes or activity of pairing regulator genes?
(Public Library of Science, 2018-01)
Cytological diploidization process is different in autopolyploid and allopolyploid species. Colchicine applied at the onset of meiosis suppresses the effect of pairing regulator genes resulting multivalents formation in ...
Transference of natural diversity from the apomictic germplasm of Paspalum notatum to a sexual synthetic population
(Wiley Blackwell Publishing, Inc, 2019-06)
Genetic improvement in apomictic forage species has been restricted because of the absence of genetic variability in sexual germplasm with the same ploidy level. Following a new breeding scheme, a sexual synthetic tetraploid ...
The hamster cheek pouch model for field cancerization studies
(Wiley Blackwell Publishing, Inc, 2015-02)
External carcinogens, such as tobacco and alcohol, induce molecular changes in large areas of oral mucosa, which increase the risk of malignant transformation. This condition, known as ‘field cancerization’, can be detected ...
Genomic, karyological and morphological changes of South American garlics (Ipheion) provide insights into mechanisms of speciation in the Pampean region
(Wiley Blackwell Publishing, Inc, 2021-06-04)
Speciation proceeds through mechanisms that promote reproductive isolation and shape the extent of genetic variation in natural populations, and thus its study is essential to understand the evolutionary processes leading ...
Pollen-mediated gene flow from a commercial potato cultivar to the wild relative S. chacoense bitter under experimental field conditions in argentina
(Wiley Blackwell Publishing, Inc, 2013-12-10)
The common potato, Solanum tuberosum ssp. tuberosum (tbr, 2n = 4x = 48; 4EBN), has many closely related wild tuber-bearing species. Around 28 to 35 of them spontaneously grow in Argentina overlapping, in some areas, with ...
Chromosomal studies in species of Salvia (Lamiaceae) from Argentina
(Wiley Blackwell Publishing, Inc, 2003-04)
Meiotic and mitotic chromosomes of 13 species of Salvia from Argentina were studied. Most of our data are new counts but some, mainly from cultivated species, confirm previous reports or represent numbers which are different ...