Results 41 to 50 of about 36,204 (291)

A simple model for the influence of meiotic conversion tracts on GC content. [PDF]

open access: yesPLoS ONE, 2011
A strong correlation between GC content and recombination rate is observed in many eukaryotes, which is thought to be due to conversion events linked to the repair of meiotic double-strand breaks. In several organisms, the length of conversion tracts has
Marie-Claude Marsolier-Kergoat
doaj   +1 more source

Karyotype evolution in progress: A new diploid number in Belostoma candidulum (Heteroptera: Belostomatidae) from Argentina leading to new insights into its ecology and evolution [PDF]

open access: yes, 2014
A novel chromosome complement (2n = 14 = 12 + XY/XX; male/female sex chromosomes), male meiosis behaviour, heterochromatin characterization, and frequency and distribution of chiasmata are described for the first time in specimens from a natural ...
Bressa, Maria Jose   +1 more
core   +1 more source

The Development and Meiotic Behavior of Asymmetrical Isochromosomes in Wheat [PDF]

open access: yesGenetics, 1997
To determine which segments of a chromosome arm are responsible for the initiation of chiasmate pairing in meiosis, a series of novel isochromosomes was developed in hexaploid wheat (Triticum aestivum L.). These isochromosomes are deficient for different terminal segments in the two arms.
openaire   +2 more sources

UBR2 of the N-end rule pathway is required for chromosome stability via histone ubiquitylation in spermatocytes and somatic cells [PDF]

open access: yes, 2012
The N-end rule pathway is a proteolytic system in which its recognition components (N-recognins) recognize destabilizing N-terminal residues of short-lived proteins as an essential element of specific degrons, called N-degrons.
An, JY   +12 more
core   +1 more source

Meiotic behavior during microsporogenesis, responsible for male sterility in some species of Salvia sect. Aethiopis in Iran

open access: yesCaryologia
The genus Salvia L. (Lamiaceae: tribe Mentheae) contains about 1000 species. Section Aethiopis in this genus has a distribution in the Mediterranean and central Asia and contains about 34 species in Iran.
Fatemeh Hajmoradi
doaj   +1 more source

Phospho-Regulation of Meiotic Prophase

open access: yesFrontiers in Cell and Developmental Biology, 2021
Germ cells undergoing meiosis rely on an intricate network of surveillance mechanisms that govern the production of euploid gametes for successful sexual reproduction.
Funda M. Kar, Andreas Hochwagen
doaj   +1 more source

Meiotic cellular rejuvenation is coupled to nuclear remodeling in budding yeast. [PDF]

open access: yes, 2019
Production of healthy gametes in meiosis relies on the quality control and proper distribution of both nuclear and cytoplasmic contents. Meiotic differentiation naturally eliminates age-induced cellular damage by an unknown mechanism.
Chetlapalli, Keerthana   +6 more
core   +1 more source

POLLEN MEIOTIC BEHAVIOR IN RELATION TO PHALAENOPSIS BREEDING

open access: yesActa Horticulturae, 2010
articulo -- Universidad de Costa Rica. Escuela de Agronomia, 2010. Este documento es privado debido a limitaciones de derechos de autor.
Hsu, Shih-Chieh   +4 more
openaire   +2 more sources

Meiotic behavior and diploidy in Schinus terebinthifolia (Anacardiaceae)

open access: yesRodriguésia, 2021
Abstract The genus Schinus (Anacardiaceae) comprises 30 species found in Peru, Bolivia, Chile, Paraguay, Uruguay, Argentina and Brazil. Schinus terebinthifolia (Brazilian pepper tree) is socioeconomically important in the Brazilian state of Espírito Santo. Dried fruit is used as a pepper-like spice and natural populations are exploited.
Kamila Bernardi Izoton   +3 more
openaire   +4 more sources

Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy

open access: yesAdvanced Science, EarlyView.
Lactate, once deemed a metabolic waste, emerges as a central regulator of cancer progression. This review elucidates how lactate and its epigenetic derivative, protein lactylation, orchestrate tumor metabolism, immune suppression, and therapeutic resistance.
Jiajing Gong   +5 more
wiley   +1 more source

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