Results 141 to 150 of about 2,412 (170)

The holocentricity in the dioecious nutmeg (Myristica fragrans) is not based on major satellite repeats. [PDF]

Chromosome Res
Kuo YT, Kurian JG, Schubert V, Fuchs J, Melzer M, Muraleedharan A, Maruthachalam R, Houben A.   +7 more
europepmc   +1 more source

Architecture and Function of Holocentric CENP-A-Independent Kinetochores

Yu C, Sankaranarayanan SR, Cornilleau G, Howes A, Azumaya C, Zilberleyb I, Brillantes B, Cheung TK, Dec L, Loew D, Tran P, Rose CM, Drinnenberg IA, Ciferri C, Yatskevich S.   +14 more
europepmc   +1 more source

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Do holocentric chromosomes represent an evolutionary advantage? A study of paired analyses of diversification rates of lineages with holocentric chromosomes and their monocentric closest relatives

Chromosome Research, 2017
Despite most of the cytogenetic research is focused on monocentric chromosomes, chromosomes with kinetochoric activity localized in a single centromere, several studies have been centered on holocentric chromosomes which have diffuse kinetochoric activity along the chromosomes.
José Ignacio Márquez Corro, Antonio Marcial Escudero Lirio, Modesto Luceño Garcés   +2 more
exaly   +3 more sources

The Phylogenetic Origins and Evolutionary History of Holocentric Chromosomes

Systematic Botany, 2016
In eukaryotes, we can recognize two kinds of chromosomes, based on the location of the kinetochores. The majority of eukaryotes have monocentric chromosomes, in which kinetochoric activity is concentrated in a single locus. In several unrelated eukaryotic lineages, chromosomes are holocentric, having diffuse centromeric / kinetochoric activity along ...
Antonio Marcial Escudero Lirio, Andrew L Hipp   +1 more
exaly   +2 more sources

Segregation of holocentric chromosomes at meiosis in the nematode,Caenorhabditis elegans

Chromosome Research, 1993
The meiotic segregation of the holocentric chromosomes of Caenorhabditis elegans in both spermatogenesis and oogenesis is described. The extended kinetochore typical of the mitotic chromosome could not be differentiated on meiotic bivalents; instead microtubules appeared to project into the chromatin.
D G, Albertson, J N, Thomson
exaly   +3 more sources

Evolution of holocentric chromosomes: Drivers, diversity, and deterrents

Seminars in Cell & Developmental Biology, 2022
Centromeres are specialized chromosomal regions that recruit kinetochore proteins and mediate spindle microtubule attachment to ensure faithful chromosome segregation during mitosis and meiosis. Centromeres can be restricted to one region of the chromosome.
Senaratne, Aruni, Cortes-Silva, Nuria, Drinnenberg, Ines   +2 more
openaire   +3 more sources

Holocentric chromosome behaviour inCuscuta (Cuscutaceae)

Plant Systematics and Evolution, 1994
The present study demonstrates thatCuscuta babylonica Choisy has holocentric chromosomes. Evidence for this phenomenon comes from three different observations. (1) Mitosis: During metaphase and anaphase the sister-chromatids are situated parallel to the equatorial plane with no sign of localized kinetochore activity.
Batia Pazy, Uzi Plitmann
openaire   +1 more source

Are rice chromosomes components of a holocentric chromosome ancestor?

Plant Molecular Biology, 1997
Comparative genomics reveals that cereal genomes are composed of similar genomic building blocks (linkage blocks). By stacking these blocks in a unique order, it is possible to construct a single ancestral 'chromosome' which can be cleaved to give the basic structure of the 56 different chromosomes found in wheat, rice, maize, sorghum, millet and ...
G, Moore, L, Aragón-Alcaide, M, Roberts, S, Reader, T, Miller, T, Foote   +5 more
openaire   +2 more sources

Chromosomal evolution in Cryptangieae Benth. (Cyperaceae): Evidence of holocentrism and pseudomonads

Protoplasma, 2023
Cryptangieae has recently been revised based on morphology and molecular phylogeny, but cytogenetic data is still scarce. We conducted this study with the aim of investigating the occurrence of holocentric chromosomes and pseudomonads, as well as understanding the mode of chromosomal evolution in the tribe.
Ana Luisa Arantes Chaves, Marco Tulio Mendes Ferreira, Marcial Escudero, Modesto Luceño, Suzana Maria Costa   +4 more
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