Results 81 to 90 of about 18,943 (253)

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Karyotype alterations, meiotic abnormalities, and reduced pollen viability in triploid cytotypes of Passiflora foetida (Passifloraceae) derived from endosperm cultures

Ornamental Horticulture
The polyploidy induction offers the possibility to generate new variations in plant shape, color, fragrance, form, shelf life, flower architecture, and adaptability to adverse environments.
Joelson Oliveira Barros, Lyderson Facio Viccini, Elyabe Monteiro Matos, Wagner Campos Otoni, Aryane Campos Reis, Saulo Marçal Sousa, Diego Ismael Rocha, Maurecilne Lemes Silva   +7 more
doaj   +1 more source

Meiotic behavior as a selection tool in silage corn breeding

Genetics and Molecular Research, 2010
In breeding programs, commercial hybrids are frequently used as a source of inbred lines to obtain new hybrids. Considering that maize production is dependent on viable gametes, the selection of populations to obtain inbred lines with high meiotic stability could contribute to the formation of new silage corn hybrids adapted to specific region.
V F, Souza, M S, Pagliarini, C A, Scapim, M, Rodovalho, M V, Faria   +4 more
openaire   +2 more sources

Homologous recombination, sister chromatid cohesion, and chromosome condensation in mammalian meiosis

, 2002
In the life cycle of sexually reproducing eukaryotes, haploid and diploid generations of cells alternate. Two types of cell division occur in such a life cycle: mitosis and meiosis. They are compared in chapter 1 .
Eijpe, M.
core  

Transcriptomic signatures reveal systemic adaptations and immune modulation in response to training and competitive racing in horses

Equine Veterinary Journal, EarlyView.
Abstract Background The molecular mechanisms underlying adaptation to physical exertion and racing stress in horses remain incompletely understood. Peripheral blood transcriptomics offers a minimally invasive method to monitor systemic responses to exercise and identify biomarkers of adaptation or overload. Objectives To evaluate transcriptomic changes
Izabela Dąbrowska, Jowita Grzędzicka‐Agko, Paula Kiełbik, Michał Trela, Olga Witkowska‐Piłaszewicz   +4 more
wiley   +1 more source

Meiotic analysis in induced tetraploids of Brachiaria decumbens Stapf

Crop Breeding and Applied Biotechnology, 2011
The meiotic behavior of three tetraploid plants (2n=4x=36) originated from somatic chromosome duplication of sexually reproducing diploid plants of Brachiaria decumbens was evaluated. All the analyzed plants presented abnormalities related to polyploidy,
Carine Simioni, Cacilda Borges do Valle
doaj  

Meiotic behavior and its implications on the reproductive success of Arnebia euchroma (Royle ex Benth.) I.M.Johnst. (Boraginaceae), an important medicinal plant of Trans-Himalaya

Caryologia
The present study reports the chromosome number, meiotic behavior and its relation with pollen fertility and seed set of Arnebia euchroma (Royle ex Benth.) I.M.Johnst. The species shows a chromosome count of 2n = 2x = 14.
Irfan Iqbal Sofi, Shivali Verma, Aijaz H. Ganie, Namrata Sharma, Manzoor A. Shah   +4 more
doaj   +1 more source

Meiotic Behavior and Pollen Viability of Spondias mombin L.: Native Fruit Species of the Amazon

, 2019
Spondias mombin L. is a fruit species native to the Amazon with great marketing potential. The aim of this study was to examine the meiotic behavior and pollen viability of S. mombin.
Kelli Évelin Müller Zortéa (7031837), Vinícius Delgado da Rocha (7031843), Ana Aparecida Bandini Rossi (4704385), Rosimeire Barboza Bispo (7031840), Eulalia Soler Sobreira Hoogerheide (6699347)   +4 more
core   +1 more source

Protective Effects of Fenugreek and Stevia Extracts on Dexamethasone‐Induced Testicular Damage in a Rat Model

Food Safety and Health, EarlyView.
Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad, Medhat Ibrahim A. Omar, Mohammed I. Elkhateeb, Ahmed A. Zaky   +3 more
wiley   +1 more source

A meiotic study of two translocations and a tertiary trisomic in the mouse (Mus musculus)

, 1975
In this section, the order of the articles has not been closely followed. Each point ends with the number(s) of the article(s) (as given in the contents), where the conclusion is based on.1) Cytological meiotic studies of T(2;8)26H and T(1;13)70H ...
Boer, P., de, de Boer, P.
core