An intraspecific origin of B chromosomes in Tetragonisca fiebrigi (Apidae: Meliponini) inferred from cytogenetic and nuclear genome size data [PDF]
Tetragonisca angustula and Tetragonisca fiebrigi are two stingless bees’ species commonly known as “jataí”. Cytogenetic data indicates the presence of B chromosomes in T. fiebrigi and absence in T. angustula, constituting a cytotaxonomic character.
Marina Souza Cunha +6 more
doaj +2 more sources
Chromosome distribution of four LTR retrotransposons and 18 S rDNA in coffea eugenioides [PDF]
Repetitive sequences are recognized for their roles in plant genome organization and function. Mobile elements are notable repeatome sequences due to their intrinsic mutagenic potential, which is related to the origin of adaptive novelties. Understanding
Mariana Cansian Sattler +3 more
doaj +2 more sources
Embryonic abnormalities and genotoxicity induced by 2,4-dichlorophenoxyacetic acid during indirect somatic embryogenesis in Coffea [PDF]
Indirect somatic embryogenesis (ISE) is a morphogenetic pathway in which somatic cells form callus and, later, somatic embryos (SE). 2,4-dichlorophenoxyacetic acid (2,4-D) is a synthetic auxin that promotes the proliferation and dedifferentiation of ...
João Paulo de Morais Oliveira +3 more
doaj +2 more sources
Citogenética e biologia molecular em leucemia linfocítica crônica Cytogenetics and molecular biology in chronic lymphocytic leukemia [PDF]
O estudo das alterações cromossômicas em LLC é importante no auxílio ao diagnóstico, quando da identificação de doença clonal e no diagnóstico diferencial com outras linfoproliferações; no acompanhamento evolutivo ao permitir a detecção de alterações ...
Maria de Lourdes L. F. Chauffaille
doaj +4 more sources
The tight bond between Fanconi anemia and aging [PDF]
Fanconi anemia (FA) is a rare genetic disorder characterized by genomic instability, bone marrow failure, physical abnormalities, and increased cancer susceptibility. Growing evidence suggests that.
Marco Antonio Mejía-Barrera +15 more
doaj +2 more sources
A neoplasia mielodisplásica (SMD) representa um grupo heterogêneo de doenças que acomete preferencialmente indivíduos idosos e possui uma ampla variação de manifestações clínicas e patológicas que têm em comum uma alteração clonal nas células ...
AL Nunes +6 more
doaj +1 more source
EVOLUTIONARY DYNAMICS OF AUTOPOLYPLOIDS IN NATURAL POPULATIONS: THE CASE OF TURNERA SIDOIDES COMPLEX [PDF]
Turnera sidoides (x=7) is one of the few well-studied South American autopolyploid complexes. Since polyploidy has played a prominent role within this complex, ongoing studies in T.
Kovalsky I.E. +11 more
doaj +1 more source
IMPACTO PROGNÓSTICO DO PADRÃO DE EXPRESSÃO DE EZH2 EM NEOPLASIA MIELODISPLÁSICA
Introdução: A Neoplasia Mielodisplásica (SMD) compreende a um grupo heterogêneo de doenças clonais das células pluripotentes hematopoiéticas, caracterizada por displasias na medula óssea (MO), citopenias no sangue periférico (SP) e um risco de evolução ...
GF Lima +4 more
doaj +1 more source
Frequent copy number variants in a cohort of Mexican-Mestizo individuals
Background The human genome presents variation at distinct levels, copy number variants (CNVs) are DNA segments of variable lengths that range from several base pairs to megabases and are present at a variable number of copies in human genomes.
Silvia Sánchez +14 more
doaj +1 more source
9q21.13q21.31 deletion in a patient with intellectual disability severe speech delay and and dysmorphic features a newly recognized microdeletion syndrome [PDF]
The increased use of chromosomal microarray analysis has led to the identification of new microdeletion/microduplication syndromes, enabling better genotype-phenotype correlations.
Correia, Hildeberto +6 more
core +1 more source

