Results 31 to 40 of about 87,420 (336)

Yield, structural composition and nutritive characteristics of ryegrass cultivars used to haymaking in lowland soils

open access: yesBioscience Journal, 2018
This research aimed to evaluate the dry matter yield, structural composition and nutritive characteristics of diploid and tetraploid annual ryegrass cultivars on different phenological development to haymaking on lowland soils.
Olmar Antônio Denardin Costa   +7 more
doaj   +1 more source

Multicolour interphase cytogenetics: 24 chromosome probes, 6 colours, 4 layers [PDF]

open access: yes, 2011
From the late 1980s onwards, the use of DNA probes to visualise sequences on individual chromosomes (fluorescent in-situ hybridisation - FISH) revolutionised the study of cytogenetics.
A.R. Thornhill   +61 more
core   +1 more source

INVESTIGATING EARLY SIGNS OF ENDOREDUPLICATION IN ARABIDOPSIS SHOOT: AN UNKNOWN FACT [PDF]

open access: yesJournal of Plant Development, 2022
Endoreduplication is alternative form of cell cycle that involves the replication of DNA without mitosis. It commonly occurs in various tissues of plants like pavement cells of leaf, trichomes and sepals of flower and led to increase in size of the cell.
Monika MAHAJAN
doaj   +1 more source

Cytological and Molecular Characterization for Ploidy Determination in Yams (Dioscorea spp.)

open access: yesAgronomy, 2021
Yam (Dioscorea spp.) is a monocotyledonous herbaceous vine plant grown in the tropics and subtropics. It is a multi-species plant with varied intra- and interspecific ploidy levels.
Cobes Gatarira   +14 more
doaj   +1 more source

A rewiring model of intratumoral interaction networks. [PDF]

open access: yes, 2019
Intratumoral heterogeneity (ITH) has been regarded as a key cause of the failure and resistance of cancer therapy, but how it behaves and functions remains unclear.
Alizadeh   +35 more
core   +2 more sources

Diâmetro dos grãos de pólen e tamanho dos estômatos em acessos diplóides e tetraplóides de Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae) Pollen grain diameter and stomatal size in diploid and tetraploid accessions of Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae)

open access: yesCiência Rural, 1999
Sete acessos da gramínea forrageira Hemarthria altissima, diplóides e tetraplóides africanos e tetraplóides brasileiros, foram analisados com fins de caracterizar, nos diferentes níveis de ploidia, os parâmetros diâmetro dos grãos de pólen e tamanho dos ...
Solange Bosio Tedesco   +2 more
doaj   +1 more source

Is Natural Population of Candida tropicalis Sexual, Parasexual, and/or Asexual?

open access: yesFrontiers in Cellular and Infection Microbiology, 2021
Candida tropicalis is one of the most common opportunistic yeast pathogens of humans, especially prevalent in tropical and subtropical regions. This yeast has broad ecological distributions, can be found in both terrestrial and aquatic ecosystems ...
Jianping Xu, Jianping Xu
doaj   +1 more source

Studies on conifer chromosomes under introduction in botanical gardens, arboretums and parks [PDF]

open access: yesСибирский лесной журнал, 2023
The information obtained by the authors during the karyological study on conifers growing in arboretums, parks, and botanical gardens from different countries is summarized. Representatives of two genera, pine (Pinus L.) and spruce (Picea A.
T. S. Sedel’nikova   +2 more
doaj   +1 more source

Problems associated with the use of Heliantbus species for the breeding of the cultivated sunflower: Ploidy level or phylogenetic distance? [PDF]

open access: yesSelekcija i Semenarstvo, 2000
Of the 49 species that comprise the genus Helianthus, 42 are present in the wild species collection at the Institute of Field and Vegetable Crops. This is a rich bank of desirable genes for sunflower breeders.
Atlagić Jovanka, Škorić Dragan
doaj  

The microgeographical patterns of morphological and molecular variation of a mixed ploidy population in the species complex Actinidia chinensis. [PDF]

open access: yesPLoS ONE, 2015
Polyploidy and hybridization are thought to have significant impacts on both the evolution and diversification of the genus Actinidia, but the structure and patterns of morphology and molecular diversity relating to ploidy variation of wild Actinidia ...
Yifei Liu   +3 more
doaj   +1 more source

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