Results 41 to 50 of about 18,943 (253)
Cytological analysis of MRE11 protein during early meiotic prophase I in Arabidopsis and tomato
, 2008 Early recombination nodules (ENs) are multiprotein complexes that are thought to be involved in synapsis and recombination, but little is known about their components or how they may be involved in these events. In this study, we describe the cytological
Muyt, A. +6 more
core +1 more source
A simple model for the influence of meiotic conversion tracts on GC content. [PDF]
PLoS 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
The Development and Meiotic Behavior of Asymmetrical Isochromosomes in Wheat [PDF]
Genetics, 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
CaryologiaThe 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
Reproductive characteristics of citrus rootstocks grown under greenhouse and field environments [PDF]
Crop Breeding and Applied Biotechnology, 2013 The aim of the present study was to evaluate the possible effect of environmental factors on meiosis, meiotic index, pollenviability and in vitro germination of pollen from stock plants of the rootstocks Trifoliate, ‘Swingle’, ‘Troyer’, ‘Fepagro C13 ...
Divanilde Guerra +4 more
doaj
Karyotype, meiotic behavior and pollen features of Senna occidentalis
, 2010 Meiotic behavior, pollen morphology, interphasic nucleus pattern and karyotype description for Senna occidentalis (Caesalpinioideae — Fabaceae) are presented.
Giovana A. Torres +7 more
core +1 more source
PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility
Advanced Science, EarlyView.PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao +7 more
wiley +1 more source
Meiotic behavior and diploidy in Schinus terebinthifolia (Anacardiaceae)
Rodriguésia, 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
Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction
Advanced Science, EarlyView.During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao +8 more
wiley +1 more source
Advanced Science, EarlyView.Oligonucleotide‐based fluorescence in situ hybridization probes were developed in the model citrus species Citrus maxima. These probes were applied to comparative karyotyping across 14 species in the Rutaceae family. This analysis revealed chromosomal evolution in lineages that diverged from Citrus nearly 52 million years ago.
Li He +9 more
wiley +1 more source