Results 61 to 70 of about 96,602 (197)

First cytogenetic characterization of the southern pygmy perch Nannoperca australis (Teleostei: Percichthyidae): Karyotype, heterochromatin and repetitive DNA organization

open access: yesJournal of Fish Biology, EarlyView.
Abstract Chromosome organization and repetitive DNA distribution are important components of genome evolution in teleost fishes but remain poorly characterized in many species of ecological and conservation relevance. We performed a detailed cytogenetic analysis of the southern pygmy perch, Nannoperca australis, a small freshwater species widely used ...
Zuzana Majtánová   +3 more
wiley   +1 more source

Mean ± SD for morphometric and physical location of JcSat1, 45S rDNA and 5S rDNA on J. curcas pachytene chromosomes.

open access: yes, 2018
Mean ± SD for morphometric and physical location of JcSat1, 45S rDNA and 5S rDNA on J. curcas pachytene chromosomes.
Shuto Fukuhara (6058337)   +4 more
core   +1 more source

Gap‐Free Cannabis sativa Assemblies Reveal Post‐Polyploid Genome Remodelling and Refine the Evolution of Cannabinoid Synthase Genes

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Despite the therapeutic importance of cannabinoids, the scarcity of gap‐free Cannabis genomes has limited the dissection of the genetic and genomic basis of cannabinoid biosynthesis and genome evolution. Here, we generated two haplotype‐phased, gap‐free, gold‐standard assemblies and used them to investigate post‐polyploid genome remodelling ...
Jiangjiang Zhang   +9 more
wiley   +1 more source

Genomic analysis of 5S rDNA repeats.

open access: yes, 2013
(A) Southern blot hybridisation of 5S rDNA probe to TaqI-digested genomic DNA of the progeny of 2602-0-3 individual and diploid parental accessions. (B) Quantitative representation of the parental 5S gene families determined by a phosphorimager scanning ...
Ales Kovarik (5653915)   +9 more
core   +1 more source

Insights Into the Origin and Local Adaptation Evolution of the Cultivated Sesame With Telomere‐to‐Telomere High‐Quality Genome

open access: yesPlant Biotechnology Journal, Volume 24, Issue 10, Page 5372-5391, October 2026.
ABSTRACT Sesame (Sesamum indicum L., 2n = 26) is one of the oldest oilseed crops and is often called the ‘queen of oilseeds’ due to its high content of unsaturated fatty acids and natural antioxidants. Despite its long history, the origin and global spread of cultivated sesame remain unresolved.
Weifei Yang   +16 more
wiley   +1 more source

Chromosomal localization of 5S rDNA in Pseudis tocantins.

open access: yes, 2016
Mapping of the type II 5S rDNA probe to a male Pseudis tocantins karyotype. In the inset, chromosome pair 5 and sex chromosomes of a female of P. tocantins hybridized to the 5S rDNA probe.
Kaleb Pretto Gatto (2805271)   +2 more
core   +1 more source

Uncovering a new Scrippsiella species from the Black Sea: Scrippsiella phycobiana sp. nov. (Thoracosphaerales, Dinophyceae)

open access: yesPhycological Research, Volume 74, Issue 4, Page 299-317, October 2026.
SUMMARY The dinophyte genus Scrippsiella is a common and ecologically important component of coastal microplankton communities, yet its species diversity in the Black Sea remains insufficiently resolved due to morphological similarity among taxa and the scarcity of integrative taxonomic studies. Here, we describe Scrippsiella phycobiana sp. nov., a new
Urban Tillmann, Nina Dzhembekova
wiley   +1 more source

Conservation and loss of ribosomal RNA gene sites in diploid and polyploid Fragaria (Rosaceae)

open access: yesBMC Plant Biology, 2011
Background The genus Fragaria comprises species at ploidy levels ranging from diploid (2n = 2x = 14) to decaploid (2n = 10x = 70). Fluorescence in situ hybridization with 5S and 25S rDNA probes was performed to gather cytogenetic information that ...
Liu Bo, Davis Thomas M
doaj   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

open access: yesAdvanced Science, Volume 13, Issue 50, 7 September 2026.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng   +14 more
wiley   +1 more source

In situ hybridization of 5S rDNA to mitotic metaphase chromosomes.

open access: yes, 2012
(a) Karyoype I, 5S rDNA sites were located on homomorphic no. 1 (M/M) chromosomes, the metaphase spread was taken from one male of Mt. Tiantai-1 population; (b) Karyoype II, 5S rDNA signals were found on homomorphic no. 1 (M/M) chromosomes, the metaphase
Xiaomao Zeng (129585)   +3 more
core   +1 more source

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