Results 11 to 20 of about 36,348 (255)

Ploidy in cyanobacteria [PDF]

open access: yesFEMS Microbiology Letters, 2011
A recently developed real-time PCR method for the determination of genome copy numbers was optimized for the application to cyanobacteria. Three species were chosen to represent a fresh water species, a salt water species, and two strains of a widely used laboratory species.
Marco, Griese   +2 more
openaire   +2 more sources

Parent-of-Origin Effects on Seed Size Modify Heterosis Responses in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2022
Parent-of-origin effects arise when a phenotype depends on whether it is inherited maternally or paternally. Parent-of-origin effects can exert a strong influence on F1 seed size in flowering plants, an important agronomic and life-history trait that can
Rosa Castillo-Bravo   +5 more
doaj   +1 more source

Effects of Donor x Inducer Interaction on the Success of Haploid Induction and Comparison of Haploid Seed Identification Methods in the In vivo Maternal Haploid Technique in Maize

open access: yesJournal of Agricultural Sciences, 2022
This study was conducted to investigate the effect of donor and inducer lines on the haploid induction rate in the in vivo maternal doubled haploid technique in maize and to compare the methods used in haploid seed separation.
Berk Vural   +4 more
doaj   +1 more source

Interspecific hybridization of sturgeon species affects differently their gonadal development

open access: yesCzech Journal of Animal Science, 2018
Gonad development in fish is generally assumed to be negatively influenced by interspecific hybridization, resulting in sterility or sub-sterility. However, this is not the case in sturgeons (Acipenseridae), in which fertile hybrids are common.
Zuzana Linhartová   +3 more
doaj   +1 more source

Ploidy and the evolution of parasitism [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2011
Levels of parasitism are continuously distributed in nature. Models of host–parasite coevolution, however, typically assume that species can be easily characterized as either parasitic or non-parasitic. Consequently, it is poorly understood which factors influence the evolution of parasitism itself.
Leithen K, M'Gonigle, Sarah P, Otto
openaire   +2 more sources

A Target Capture-Based Method to Estimate Ploidy From Herbarium Specimens

open access: yesFrontiers in Plant Science, 2019
Whole genome duplication (WGD) events are common in many plant lineages, but the ploidy status and possible occurrence of intraspecific ploidy variation are unknown for most species.
Juan Viruel   +16 more
doaj   +1 more source

Embryos Arising from Apronuclear (0PN) and Unipronuclear (1PN) Have Similar Euploidy Rates with Those from 2PN and Should be Considered for Transfer

open access: yesFertility & Reproduction, 2019
Background: Fertilisation assessment is routinely made at 16–18 hours post-ICSI and 18–20 hours post-insemination. However, the absence of pronuclei (PN) during standard fertilisation assessment does not necessarily indicate fertilisation failure.
Adelle Yun Xin Lim, Colin Soon Soo Lee
doaj   +1 more source

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

p53: Guardian of ploidy

open access: yesMolecular Oncology, 2011
AbstractAneuploidy, often preceded by tetraploidy, is one of the hallmarks of solid tumors. Indeed, both aneuploidy and tetraploidy are oncogenic occurrences that are sufficient to drive neoplastic transformation and cancer progression. True to form, the tumor suppressor p53 obstructs propagation of these dangerous chromosomal events by either ...
Aylon, Yael, Oren, Moshe
openaire   +4 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

Home - About - Disclaimer - Privacy