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1 e, but only ~2.3% of these sites mature into chiasmata.
2 nd precise inter-hemispheric connections via chiasmata.
3 th the cycles, and rarely progresses to form chiasmata.
4 nation intermediates, resulting in increased chiasmata.
5 her genes are responsible for these residual chiasmata.
6 a are significantly more distal than class I chiasmata.
7 and segregate without recombining or forming chiasmata.
8 mologous chromosomes to promote formation of chiasmata.
9 vent crucial for the efficient resolution of chiasmata.
10 mal regions between centromeres and proximal chiasmata.
11 ces using MLH1 foci more accurate than using chiasmata.
12 s of homologous chromosomes held together by chiasmata.
13 n lead to segregation even in the absence of chiasmata.
14 ific cohesin SMC1beta massively lose SCC and chiasmata [3, 4].
15 y, chromosomes from mutant mice did not form chiasmata, a point that connects exchanging homologous c
16 y difficult method of cytologically counting chiasmata among human male meiotic events (sperm).
17 s cytological observations on the numbers of chiasmata and evaluated evidence for the obligate chiasm
18              As a result, syp-3 mutants lack chiasmata and exhibit increased chromosome mis-segregati
19 orrespondence in position and number between chiasmata and HTP-1/2-depleted regions and provide evide
20 ng meiosis, which in turn helps to establish chiasmata and promote genetic diversity.
21                                   In lieu of chiasmata and synaptonemal complexes, there must be mole
22 sis, homologous chromosomes become linked by chiasmata and then move back and forth on the spindle un
23 s fall below the level required to stabilize chiasmata and to hold sister centromeres tightly togethe
24 he oval shape of diplotene bivalents between chiasmata, and the rigidity of pachytene chromosomes are
25       In recombination-proficient organisms, chiasmata appear to mediate associations between homolog
26                 In Arabidopsis, about 85% of chiasmata are eliminated in Atmsh4 mutants, denoting tha
27                               Crossovers and chiasmata are eliminated in him-17 null mutants but are
28 all components required to convert DSBs into chiasmata are present.
29                                 The residual chiasmata are randomly distributed between cells and chr
30                                              Chiasmata are replaced by a homolog conjunction complex
31                                              Chiasmata are restricted to chromosomal ends, which make
32 wed toward the chromosome ends, but class II chiasmata are significantly more distal than class I chi
33                         Class I and class II chiasmata are skewed toward the chromosome ends, but cla
34 le to arrest at metaphase I, indicating that chiasmata are unstable in the absence of cohesion.
35 st organisms, the stable connections, called chiasmata, arise from crossovers.
36 formation of cytological structures known as chiasmata at the sites of genetic crossovers (COs).
37            Crossover interference results in chiasmata being more evenly distributed along chromosome
38 me inheritance and fertility by establishing chiasmata between homologous chromosomes prior to the fi
39                    msh-5 mutant oocytes lack chiasmata between homologous chromosomes, and crossover
40  reduces crossing over, resulting in lack of chiasmata between homologs and consequent missegregation
41 ires the production of physical connections (chiasmata) between homologs through recombinational exch
42 g of homologous chromosomes held together by chiasmata biorient.
43 re not detected, and oocyte chromosomes lack chiasmata but appear otherwise intact.
44     Furthermore, DSB levels and incidence of chiasmata can be modulated by loss of LIN-35/Rb.
45 reased homeologous chromosome pairing by 1.6 chiasmata/cell in T. aestivum x Ae. speltoides hybrids a
46 ivum x Ae. speltoides hybrids by 8.4 and 5.8 chiasmata/cell, respectively.
47 y checkpoint, rather than a recombination or chiasmata checkpoint, may be activated in response to me
48 omosomes during meiosis depends on linkages (chiasmata) created by crossovers and on selective releas
49 ur observation of synaptonemal complexes and chiasmata demonstrate that a typical meiotic program occ
50 r, the chromosomes exhibited dynamic loss of chiasmata during metaphase I, resulting in meiotic failu
51     Consistent with this, univalents lacking chiasmata elicit a SAC-mediated arrest in Mlh1(-/-) oocy
52                                              Chiasmata established by recombination are normally suff
53 es concerning the minimum number of required chiasmata for meiosis: minimum one chiasma per chromosom
54 ls-the lamina, medulla, and lobula-linked by chiasmata has been used to support arguments that insect
55 chores are pulled toward opposite poles, and chiasmata holding bivalent chromosomes together are reso
56 ins of the 15% residual (AtMSH4-independent) chiasmata in Arabidopsis we conducted a cytological and
57 r corresponds approximately to the number of chiasmata in maize meiosis.
58  the de novo ROB influences the placement of chiasmata in the long arm, it is most likely that the tr
59                                 The residual chiasmata in the mutants were distributed randomly, indi
60 designated sites fail to mature into COs and chiasmata, indicating a pro-CO role for HIM-6/BLM that m
61 s indicates that a presence of more than one chiasmata is rather caused by the relationship between c
62 genetic crossovers, cytologically visible as chiasmata, is skewed toward the distal regions of the ch
63  albeit not in bivalents where resolution of chiasmata may also be required.
64 r during meiosis I, physical linkages called chiasmata need to form between homologs, sister chromati
65 unique sex-dependent effect on MLH1 foci and chiasmata numbers was observed: males exhibited an incre
66 correspond to the number and distribution of chiasmata on diplotene-metaphase I chromosomes.
67                                The number of chiasmata per cell was reduced from 14 in control plants
68 ct as to the direction of change, with fewer chiasmata reported in Arabidopsis thaliana and more cros
69        These CO sites, seen cytologically as chiasmata, represent a reciprocal exchange of genetic in
70 e segregation is ensured by the formation of chiasmata resulting from crossing over.
71                                              Chiasmata resulting from interhomolog recombination are
72 ants exhibit reduced recombination and fewer chiasmata, resulting in the loss of obligate crossovers
73 ith an increase in interstitial and proximal chiasmata, suggesting a potential route to modify recomb
74  homologous chromosomes are required to form chiasmata, temporary connections between homologues that
75 ssovers generate homolog connectors known as chiasmata that are stabilized by cohesion between sister
76 ng homologous chromosomes together, creating chiasmata that ensure accurate disjunction during reduct
77 yo resorption, likely a consequence of fewer chiasmata that increase univalents at meiotic metaphase
78 rhomolog crossovers (COs), which mature into chiasmata that temporarily connect the homologs to ensur
79                           Meiotic crossovers/chiasmata, that are required to ensure chromosome disjun
80                In most eukaryotic organisms, chiasmata, the connections formed between homologous chr
81 s in meiosis, including reduced formation of chiasmata, the cytological appearance of COs.
82  loss of arm cohesion and destabilization of chiasmata, the frequency at which recombinant homologs m
83 hesin in association with destabilization of chiasmata, the physical linkages between homologous chro
84 te poles, usually requiring their linkage by chiasmata, the products of crossover recombination.(1) T
85 o ncd; even though chromosomes are joined by chiasmata they fail to segregate at meiosis I.
86      In many species there is a tendency for chiasmata to be distributed in favored regions along the
87               Most organisms use crossovers (chiasmata) to maintain physical connections between homo
88  formation of crossovers, and the consequent chiasmata, to accomplish successful segregation of homol
89 ing over between homologs, and the resulting chiasmata, to direct meiosis I chromosome segregation, y
90 on intermediates that cannot be sustained as chiasmata until late prophase.
91 ially induced breaks generate crossovers and chiasmata using the normal meiotic recombination machine
92 lines, although the localization of residual chiasmata was not affected.
93 the Class II interference-insensitive COs as chiasmata were reduced by ~52% in msh5/zyp1 compared to
94                 Total crossovers measured by chiasmata were unchanged when heterozygosity was varied,
95                         Crossovers establish chiasmata, which are physical connections between homolo
96                       Crossovers mature into chiasmata, which hold and orient the homologous chromoso