Results 91 to 100 of about 12,551 (327)

Multiple pregnancy with complete hydatidiform mole and coexisting normal fetus: systematic review and meta‐analysis of clinical outcomes from non‐randomized studies

Ultrasound in Obstetrics &Gynecology, EarlyView.
ABSTRACT Objective Complete hydatidiform mole and coexisting normal fetus (CHMCF) is a rare condition for which there is significant heterogeneity in diagnosis, counseling and management of complications. The objective of this study was to summarize the prevalence of clinical outcomes in reported cases of CHMCF.
N. Salmeri, A. Pizzetti, E. Grassi, R. Cioffi, G. Mangili, M. Seckl, A. Sotiriadis, M. Candiani, P. I. Cavoretto   +8 more
wiley   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

New Phytol
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Schley RJ, Piñeiro R, Nicholls JA, Gaynor ML, Lewis GP, Fonseca Pezzini F, Dexter KG, Kidner C, Pennington RT, Twyford AD.   +9 more
europepmc   +3 more sources

Cellular changes during Medicago truncatula hypocotyl growth depend on temperature and genotype. [PDF]

, 2014
Hypocotyl growth is a key characteristic for plant emergence, influenced by environmental conditions, particularly temperature, and varying among genotypes.
B. Teulat, C. Dürr, D. Demilly, G. Mabilleau, J. Pierre, M. Juchaux   +5 more
core   +3 more sources

Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives

Insect Science, EarlyView.
The genetic basis of sex determination in Lepidoptera was discovered in 2014 in the silkworm Bombyx mori. In this model species, the W chromosome‐derived small piRNA called Fem piRNA downregulates the expression of a Z‐linked gene, Masculinizer (Masc), which leads to the default female‐specific splicing of the doublesex gene (dsxF) and thus to female ...
František Marec, Atsuo Yoshido, Arjen E. van′t Hof   +2 more
wiley   +1 more source

Genome size variation and polyploidy incidence in the alpine flora from Spain

Anales del Jardín Botánico de Madrid, 2013
The interest to study genome evolution, in particular genome size variation and polyploid incidence, has increased in recent years. Still, only a few studies have been focused at a community level.
João Loureiro, Mariana Castro, José Cerca de Oliveira, Lucie Mota, Rubén Torices   +4 more
doaj   +1 more source

SNP array typing provides new insights in chromosomal nondisjunction [PDF]

, 2017
Background Maternal uniparental disomy (UPD) of chromosome 7 (upd(7)mat) accounts for approximately 10% of patients with Silver-Russell syndrome (SRS).
Begemann, Matthias, Brioude, Frederic, Chantot-Bastaraud, Sandra, Eggermann, Thomas, Elbracht, Miriam, Graul-Neumann, Luitgard, Harbison, Madeleine, Netchine, Irene, Stratmann, Svea   +8 more
core   +1 more source

Interventional oncology in children: Where are we now?

Journal of Medical Imaging and Radiation Oncology, EarlyView.
Abstract Paediatric Interventional Oncology (IO) lags behind adult IO due to a scarcity of specific outcome data. The suboptimal way to evolve this field is relying heavily on adult experiences. The distinct tumour types prevalent in children, such as extracranial germ cell tumours, sarcomas, and neuroblastoma, differ strongly from those found in ...
Premal Amrishkumar Patel, Fernando Gómez Muñoz   +1 more
wiley   +1 more source

The effect of radiation on the long term productivity of a plant based CELSS [PDF]

Mutations occur at a higher rate in space than under terrestrial conditions, primarily due to an increase in radiation levels. These mutations may effect the productivity of plants found in a controlled ecological life support system (CELSS).
Lake, B. H., Thompson, B. G.
core   +1 more source

Karyotype, ploidy, and gene dosage [PDF]

WormBook, 2005
The normal karyotype of Caenorhabditis elegans, with its five pairs of autosomes and single pair of X chromosomes, is described. General features of chromosomes and global differences between different chromosomal regions are discussed. Abnormal karyotypes, including duplications, deficiencies, inversions, translocations and chromosome fusions are ...
openaire   +2 more sources

tidypopgen: Tidy population genetics in R

Methods in Ecology and Evolution, EarlyView.
Abstract As genome‐wide data have become increasingly available, software libraries for their analysis have proliferated. While new tools for downstream analyses are constantly emerging, existing workflows are hindered by inefficiencies. Switching between coding languages and object types in the early stages of pipelines wastes researchers' time ...
Evelyn J. Carter, Eirlys E. Tysall, Jason A. Hodgson, Andrea Manica   +3 more
wiley   +1 more source