Results 71 to 80 of about 4,691 (213)

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

open access: yesAdvanced Science, Volume 13, Issue 47, 24 August 2026.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang   +11 more
wiley   +1 more source

Dilated Fourth Ventricle in Fetuses with Trisomy 18, Trisomy 13 and Triploidy at 11-13 Weeks' Gestation

open access: yes, 2012
Objective: To determine if in fetuses with aneuploidies the diameter of the fourth cerebral ventricle at 11-13 weeks' gestation is different from euploid fetuses. Methods: The fourth ventricle at 11-13 weeks' gestation was assessed in 62 cases of trisomy
Nicolaides, Kypros H.   +4 more
core   +1 more source

Socioeconomic and policy implications on genetic improvement for sustainable aquaculture productivity in Kenya: A review

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract Aquaculture in Kenya is rapidly expanding and has become an important subsector for promoting food security, employment creation, and economic diversification, as capture fisheries continue to decline amid rising demand for fish. This review examines the socioeconomic and policy implications of genetic improvement of farmed fish species in ...
Jacob Abwao   +7 more
wiley   +1 more source

Diploid Gynogenesis Induced by Heat Shock after Activation with UV-Irradiated Sperm in Rainbow Trout (Oncorhynchus Mykiss)

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Gynogenesis is a technique used to generate diploid individuals with genetic material exclusively of maternal origin. In this study we test the hypothesis that heat shock treatment of rainbow trout eggs, activated with UV irradiated sperms, leads to the ...
Ioan Bencsik   +7 more
doaj  

Chromosomal Instability Drives Glioblastoma Heterogeneity and Therapeutic Opportunities

open access: yesAdvanced Science, Volume 13, Issue 39, 13 July 2026.
ABSTRACT Glioblastoma, the most aggressive and lethal form of brain cancer, is defined by profound genomic instability, with Chromosomal Instability (CIN) playing a central role in driving tumor progression, therapy resistance, and poor prognosis. CIN is characterized by numerical and structural alterations, is driven by mechanisms such as mitotic ...
Amarnath Pal   +3 more
wiley   +1 more source

Population structure, fluctuating asymmetry and genetic variability in an endemic and highly isolated Astyanax fish population (Characidae)

open access: yesGenetics and Molecular Biology, 2004
Morphological and chromosomal markers were used to infer the structure and genetic variability of a population of fish of the genus Astyanax, geographically isolated at sinkhole 2 of Vila Velha State Park, Paraná, Brazil.
Maria Claudia Gross   +5 more
doaj   +1 more source

Severe Holoprosencephaly With Arhinencephaly in A Liveborn Neonate: A Case Report

open access: yesClinical Case Reports, Volume 14, Issue 7, July 2026.
Physical examination revealed a‐hypotelorism, b‐arhinia, and c‐cleft lip and palate. ABSTRACT Holoprosencephaly (HPE) is a rare congenital brain malformation resulting from incomplete separation of the cerebral hemispheres. It has an estimated prevalence of 1 in 10,000 live births.
Sarah K. Kebbeh, Hamdi I. Nawfal
wiley   +1 more source

Comparative karyotype analysis in diploid and triploid Dolichoplana carvalhoi (Tricladida, Terricola, Rhynchodemidae) from Brazil

open access: yesGenetics and Molecular Biology, 2007
In this work, we present cytogenetic data for the land planarian Dolichoplana carvalhoi. Two different karyotypes, one diploid (2n = 2x = 14 chromosomes) and one triploid (2n = 3x = 21 chromosomes), corresponding to two morphological body patterns, are ...
Luciana Alvarez   +1 more
doaj   +1 more source

Facilitating Genetic Testing for Perinatal Demise: Development of a Multidisciplinary Workflow

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 6, Page 1273-1285, June 2026.
ABSTRACT Genetic contributors to perinatal demise are common but frequently undiagnosed due to clinical and logistical barriers. We aimed to improve access to genetic for intrauterine fetal demise (IUFD), stillbirth, and early neonatal death by developing a multidisciplinary workflow.
Mackenzie Mosera   +15 more
wiley   +1 more source

Field protocol for induction of triploidy in Clarias gariepinus

open access: yes, 2017
A simple field protocol for induction of triploidy in Clarias gariepinus using cold shock was developed. The quantity of ice needed to bring temperature of water down to desired temperature was first calculated.
Ekeke, C, Nwafili, S.A., Ndakor, N.P.
core   +1 more source

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