The pachytene stage (/ˈpækɪtiːn/ PAK-i-teen; from Greek words meaning "thick threads".[1]: 27 ), also known as pachynema, is the third stage of prophase I during meiosis, the specialized cell division that reduces chromosome number by half to produce haploid gametes. It follows the zygotene stage.
^Snustad DP, Simmons MJ (December 2008). Principles of Genetics (5th ed.). Wiley. ISBN 978-0-470-38825-9.
The pachytene stage (/ˈpækɪtiːn/ PAK-i-teen; from Greek words meaning "thick threads".: 27 ), also known as pachynema, is the third stage of prophase...
crossing over are complete, the cell transitions to the pachytene stage of prophase I. Pachytene features fully condensed and paired chromosomes along their...
The paired chromosomes are called bivalent or tetrad chromosomes. The pachytene stage (/ˈpækɪtiːn/ PAK-i-teen), also known as pachynema, from Greek words...
prophase. Prophase I is divided into five phases: leptotene, zygotene, pachytene, diplotene, and diakinesis. In addition to the events that occur in mitotic...
prominent in spermatocytes. In spermatocytes, HRR events occur mainly in the pachytene stage of meiosis and the gene conversion type of HRR is predominant, whereas...
one of the final phases of genetic recombination, which occurs in the pachytene stage of prophase I of meiosis during a process called synapsis. Synapsis...
responses occur depending on the meiotic stage: From leptotene to early pachytene, exogenous DNA damage triggers widespread presence of the repair protein...
silencing. ATR, BRCA1 and gammaH2AX localize to unsynapsed chromosomes at the pachytene stage of meiosis in human oocytes and this may lead to chromosome silencing...
seen during the pachytene stage of the first meiotic prophase, both in males and in females during gametogenesis. Previous to the pachytene stage, during...
organized in a discontinuous linear pattern along the condensed chromosomes (pachytene chromosomes) during the prophase stage of meiosis. The linear pattern...
II. The recombination nodule--a recombination-associated structure at pachytene?". Proceedings of the National Academy of Sciences of the United States...
seems that we can regard these chromosomes as corresponding with paired pachytene chromosomes at meiosis in which the intercalary parts between chromomeres...
both adult males and hermaphrodites where the germ cells have achieved pachytene and are attached to the walls of the gonadal tube. The rachis is filled...
S2CID 245963400. Li, X. C.; Barringer, B. C.; Barbash, D. A. (2009). "The pachytene checkpoint and its relationship to evolutionary patterns of polyploidization...
Zfy1 or Zfy2 results in programmed cell death, apoptosis, at the mid-pachytene checkpoint. In mice, Zfy genes are necessary for meiotic sex chromosome...
somatic metaphase chromosomes, David began investigating chromosomes at the pachytene stage in the development of sperm. Each chromosome has a specific, innate...
Learning. p. 177. ISBN 978-0-7637-7364-9. U. R. Murty (1973). "Morphology of pachytene chromosomes and its bearing on the nature of polyploidy in the cytological...
occur and that usually aid in the segregation of non-sister homologs. The pachytene stage of prophase I typically results in the formation of chiasmata between...
2022-08-07 Venkateswarlu, J.; Rao, K. G. Raja (1979). "Morphology of the Pachytene Chromosomes of Physalis pubescens L." Cytologia. 44 (1): 161–166. doi:10...
repair is not detectable in the pre-dictyate (leptotene, zygotene and pachytene) stages of meiosis. For those primary oocytes that continue to develop...
anaphase. Genetic crossing-over, a type of recombination, occurs during the pachytene stage of prophase I. In addition, another type of recombination referred...
repair was not detected in the pre-dictyate (leptotene, zygotene and pachytene) stages of meiosis. The long period of meiotic arrest at the four chromatid...
generally occurring during meiosis.[citation needed] During prophase I (pachytene stage) the four available chromatids are in tight formation with one another...
spermatocytes in the meiotic stages of leptotene, zygotene and early pachytene are enriched for FANC proteins. This finding suggests that recombinational...
synthesis in male meiotic cells of lilies and rodents during the zygotene–pachytene stages of meiosis when crossing over was presumed to occur. The presence...
(ssDNA) that becomes decorated with DMC1. From mid-zygotene to early pachytene, as part of the recombinational repair process, DMC1 dissociates from...
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