Meiotic chiasmata variations in the H genome among Triticeae species of varying ploidy [PDF]
Frontiers in Plant ScienceMeiotic chiasmata are critical for genetic diversity and chromosome segregation. This study aimed to cytologically analyze the variations in chiasmata within the H genome across different ploidy levels, specifically in diploid (Hordeum bogdanii ...
Ying Yang +13 more
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Accumulation of ph1 (zip4-5B) and ph2 (msh7-3D) mutations fails to boost homoeologous recombination in hexaploid wheat [PDF]
Frontiers in Plant ScienceDiversification of the hexaploid (bread) wheat genetic pool using wild genetic resources relies on effective meiotic recombination (crossover) between wheat chromosomes and their counterparts from related species (homoeologues).
Camille Haquet +9 more
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Non-Canonical Male Meiosis in a Marine Gastropod, Littorina saxatilis [PDF]
BiologyAn atypical course of male meiosis in Littorina saxatilis from zygotene to early anaphase I has been established, which includes non-canonical stages—diffuse and karyosomal.
Sergei Iu. Demin +3 more
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TaRECQ4 contributes to maintain both homologous and homoeologous recombination during wheat meiosis [PDF]
Frontiers in Plant Science, 2023 IntroductionMeiotic recombination (or crossover, CO) is essential for gamete fertility as well as for alleles and genes reshuffling that is at the heart of plant breeding.
Jeanne Bazile +6 more
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ASYNAPSIS 1 ensures crossover fidelity in polyploid wheat by promoting homologous recombination and suppressing non-homologous recombination [PDF]
Frontiers in Plant Science, 2023 During meiosis, the chromosome axes and synaptonemal complex mediate chromosome pairing and homologous recombination to maintain genomic stability and accurate chromosome segregation.
Chiara Di Dio +3 more
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Genomic introgressions from wild relatives in the wheat genome alter meiotic dynamics in inter-varietal hybrids. [PDF]
Plant JSUMMARY The use of wild relatives to introduce original diversity in the genome of bread wheat (Triticum aestivum L.) is an interesting approach to face the challenges of sustainable agriculture and the impact of climate change on wheat production. However, the influence of these wild‐species introgressions on meiosis in inter‐varietal wheat hybrids ...
Yan L +5 more
europepmc +2 more sources
Using wheat-rye 1BL.1RS translocations to disclose the effects of subtelomeric tandem repeats on meiotic behavior of homologues [PDF]
BMC Plant BiologyBackground The subtelomeric region of the 1RS arm of rye (Secale cereale L.) contains several kinds of tandem repeats with high copy number and they can affect meiotic recognition and pairing of this chromosome arm.
Yang Zou +6 more
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PLoS Genetics, 2011 The chiasma is a structure that forms between a pair of homologous chromosomes by crossover recombination and physically links the homologous chromosomes during meiosis. Chiasmata are essential for the attachment of the homologous chromosomes to opposite
Yuta Itabashi, Ayumu Yamamoto
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The chiasmata systems of Scottish Chysolina latecincta (Demaison, 1896) (Coleoptera, Chrysomelidae) [PDF]
Comparative Cytogenetics, 2021 The meiotic systems of some Scottish individuals of the rare Chrysolina latecincta ssp. intermedia (Franz, 1938) have been analyzed from meiotic cells at diakinesis to study the types of chromosomal bivalents and the number and locations of their ...
Eduard Petitpierre
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MEIOTIC CONJUNCTIVE ELEMENTS NOT INVOLVING CHIASMATA [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 1964 Kenneth W Cooper, Cooper Kenneth W
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