Results 51 to 60 of about 118,231 (380)
Unreduced megagametophyte production in lemon occurs via three meiotic mechanisms, predominantly second-division restitution [PDF]
, 2017 Unreduced (2n) gametes have played a pivotal role in polyploid plant evolution and are useful for sexual polyploid breeding in various species, particularly for developing new seedless citrus varieties.
Houssem Rouiss +5 more
core +2 more sources
Cell Reports, 2021 Summary: Functional tags are ubiquitous in cell biology, and for studies of one chromosomal locus, the centromere, tags have been remarkably useful. The centromere directs chromosome inheritance at cell division. The location of the centromere is defined
Catalina Salinas-Luypaert +6 more
doaj +1 more source
RNAi is a critical determinant of centromere evolution in closely related fungi
Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance The “centromere paradox” refers to rapidly evolving and highly diverse centromere DNA sequences even in closely related eukaryotes. However, factors contributing to this rapid divergence are largely unknown.
V. Yadav +9 more
semanticscholar +1 more source
Centromere Structure and Function. [PDF]
Progress in molecular and subcellular biology, 2017 The centromere is the genetic locus that specifies the site of kinetochore assembly, where the chromosome will attach to the kinetochore microtubule. The pericentromere is the physical region responsible for the geometry of bi-oriented sister kinetochores in metaphase.
K. Bloom, V. Costanzo
semanticscholar +5 more sources
A Positive Spin on the Centromere [PDF]
Journal of End-to-End-testing, 2009 The properties of centromeric nucleosomes have been the subject of considerable debate and controversy. Furuyama and Henikoff (2009) now provide surprising evidence that centromeric nucleosomes wrap DNA in an orientation that is opposite to that of canonical nucleosomes.
Karolin Luger +2 more
openaire +3 more sources
Chromosome Segregation Is Biased by Kinetochore Size [PDF]
, 2018 Chromosome missegregation during mitosis or meiosis is a hallmark of cancer and the main cause of prenatal death in humans. The gain or loss of specific chromosomes is thought to be random, with cell viability being essentially determined by selection ...
Aguiar, P +8 more
core +1 more source
PLoS Biology, 2021 Centromere protein A (CENP-A) is a histone H3 variant that defines centromeric chromatin and is essential for centromere function. In most eukaryotes, CENP-A-containing chromatin is epigenetically maintained, and centromere identity is inherited from one
Reinier F Prosée +7 more
doaj +1 more source
Centromere scission drives chromosome shuffling and reproductive isolation
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance The centromere is an essential chromosomal element that enables faithful segregation of chromosomes during cell division. In many species, centromeres are enriched in transposons and repetitive elements, and centromeres have been proposed to
V. Yadav +3 more
semanticscholar +1 more source
SEQUENCE OF CENTROMERE SEPARATION: ROLE OF CENTROMERIC HETEROCHROMATIN [PDF]
Genetics, 1982 ABSTRACT The late metaphase-early anaphase cells from various tissues of male Mus musculus, M. poschiavinus, M. spretus, M. castaneus, female and male Bos taurus (cattle) and female Myopus schisticolor (wood lemming) were analyzed for centromeres that showed separation into two daughter centromeres and those that did not show such ...
openaire +3 more sources
Sds22 regulates aurora B activity and microtubule-kinetochore interactions at mitosis [PDF]
, 2010 Sds22 defines protein phosphatase 1 location and function at kinetochores and subsequent activity of aurora B in ...
DeLuca, Jennifer G. +5 more
core +4 more sources