Results 61 to 70 of about 6,142 (215)

Anatomical and Histological Descriptions of the Male Reproductive System of the Alfalfa Weevil of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae) Using Light and Scanning Electron Microscopies

Acta Zoologica, EarlyView.
ABSTRACT Features of the reproductive organs, such as the number of testicular follicles, testis colour and the morphology of the glands, can be used as systematic characters. For this purpose, this paper was the first description of the male reproductive system anatomy and histology of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae), a ...
Nurcan Özyurt Koçakoğlu, Selami Candan, Hicret Arslan, Mustafa Güllü   +3 more
wiley   +1 more source

Influence of different wheat and Imperata cylindrica genetic backgrounds on haploid induction efficiency in wheat doubled haploid breeding

Czech Journal of Genetics and Plant Breeding, 2014
Four Indian and one Japanese accession of Imperata cylindrica were assessed for their influence upon haploid production in F1 generations of 21 wheat crosses (winter × spring, spring × spring and winter × winter) to find an efficient pollen source for ...
Shoukat Ahmad RATHER, Harinder Kumar CHAUDHARY, Vineeta KAILA   +2 more
doaj   +1 more source

Diallelic Analysis of Tropical Maize Germplasm Response to Spontaneous Chromosomal Doubling

Plants, 2020
Chromosome doubling is an important step in the production of maize doubled haploid (DH) lines to induce fertility in the male and female reproductive organs of haploid plants.
Vijay Chaikam, Manje Gowda, Leocadio Martinez, Gregório Alvarado Beltrán, Xuecai Zhang, Boddupalli M. Prasanna   +5 more
doaj   +1 more source

Homologous recombination mutants cause differing lethality between h− and h+ Schizosaccharomyces pombe strains due to mat1 heterochromatin

The FEBS Journal, EarlyView.
Homologous recombination (HR) in Schizosaccharomyces pombe is essential when mating‐type switching–induced double‐strand breaks (DSBs) form at the mat1 locus. In h90 and h− strains, efficient mat1 DSB formation renders HR indispensable unless suppressors block these breaks.
Peter Kolesar, Siarhei Paliavoi, Barbora Stefanovie, Jan Josef Palecek   +3 more
wiley   +1 more source

GSK3α‐mediated regulation of the RNA demethylase fat mass and obesity‐associated protein (FTO) during murine spermatogenesis

The FEBS Journal, EarlyView.
FTO regulates mRNA stability and translational efficiency through its m6A‐demethylation activity. GSK3 functions as an upstream regulator of FTO, leading to its inhibition via phosphorylation. In male germ cells, FTO activity is kept in check by GSK3α.
Neha Choudhari, Budheswar Dehury, Rounak Roy, Radhakrishnan Periyasamy, Indrashis Bhattacharya, Mahesh Sahare, Srinivasan Vijayraghavan, Souvik Dey   +7 more
wiley   +1 more source

An evaluation of some morphological traits in doubled haploid cabbage (Brassica oleracea var. capitata L.) lines and their F1 hybrids

Acta Agriculturae Slovenica, 2002
Fifty - four doubled haploid lines produced via androgenesis and self-pollination were analysed in a field trial, as well as some of their hybrids. Based on statistical evaluation, 17 lines with favourable morphological traits (head weight, proportion ...
Katarina RUDOLF
doaj   +1 more source

Body size of male Atlantic salmon (Salmo salar L.) at introduction of a 5‐week LD12:12 winter signal influences their decision to mature early or smoltify

Journal of Fish Biology, EarlyView.
Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez, Kristine F. Staveland, Mitchell S. Fleming, Pablo Balseiro, Cindy Pedrosa, Sigurd O. Handeland   +5 more
wiley   +1 more source

Doubled haploid production from Spanish onion (Allium cepa L.) germplasm: embryogenesis induction, plant regeneration and chromosome doubling

Frontiers in Plant Science, 2015
The use of doubled haploids in onion breeding is limited due to the low gynogenesis efficiency of this species. Gynogenesis capacity from Spanish germplasm, including the sweet cultivar Fuentes de Ebro, the highly pungent landrace BGHZ1354 and the two ...
Oreto eFayos, María Pilar Vallés, Ana eGarcés-Claver, Cristina eMallor, Ana María Castillo   +4 more
doaj   +1 more source

Bony fish genomes: Status and gaps

Journal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira, Carmen Bouza, Paulino Martínez, Diego Robledo   +3 more
wiley   +1 more source

The Doubled Haploid Facility

, 2018
The Doubled Haploid Facility (DHF) is a service facility at Iowa State University, Department of Agronomy, offering the production of doubled haploid lines in maize to researchers and breeding companies.
Frei, Ursula, Lubberstedt, Thomas, Bovenmyer, Elizabeth   +2 more
openaire   +3 more sources