The Cytogenetics of Corn

Carlson, Wayne R.

doi:10.2134/agronmonogr18.3ed.c4

Cited by 24 publications

(12 citation statements)

References 234 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The abnormal chromosome 10, found in some exotic materials, is another example of genetic control in maize. The presence of this chromosome increases recombination by two-to three-fold in several regions of II ie genome (Carlson. 1977).…”

Section: Genetic Factors and Recombinationmentioning

confidence: 99%

“…Factors contributing to the variation include gender of the flower (Phillips, 1969;Robertson, 1984), genotype Grant, 1991, Williams et al, 1995), abiotic stress (Shams-UI-lslam, 1956), chromosome rearrangements, transposable elements, and supernumerary chromosomes (Timmermans et al, 1997;Carlson 1977, Lowe et al, 1992. Macro-environment (locations) variation has been studied for different genotypes, but differences in genetic recombination have not been found (Hadad et al, 1996;.…”

Section: Examples Of Possible Heritable Genome Changes Triggered By Ementioning

confidence: 99%

“…Chromosome 10 was selected because it is the smallest chromosome of the maize complement and unexpected patterns of recombination have been observed (Carlson, 1977;Lee, unpublished).…”

Section: Dna Analysismentioning

confidence: 99%

See 2 more Smart Citations

The effect of stress on meiotic recombination in maize (Zea mays L)

Verde

View full text Add to dashboard Cite

show abstract

Section: Genetic Factors and Recombinationmentioning

confidence: 99%

Section: Examples Of Possible Heritable Genome Changes Triggered By Ementioning

confidence: 99%

See 1 more Smart Citation

The effect of stress on meiotic recombination in maize (Zea mays L)

Verde

View full text Add to dashboard Cite

show abstract

“…The maize chromosome structure has been extensively reviewed [21][22][23][24][25]. In the present review, we focus on the involvement of heterochromatic knobs on the occurrence of chromosome abnormalities in maize callus cultures.…”

Section: Introductionmentioning

confidence: 99%

Maize Chromosome Abnormalities and Breakage-Fusion-Bridge Cycles in Callus Cultures

Aguiar-Perecin¹,

Santos-Serejo²,

Gardingo³

et al. 2020

Chromosomal Abnormalities

View full text Add to dashboard Cite

The maize karyotype was first characterized by the observation of pachytene chromosomes. The somatic chromosomes were identified by C-banding and FISH with repetitive DNA sequences. C-banding was useful for the identification of chromosome abnormalities in callus cultures. In the present review, we focus on the involvement of heterochromatic knobs on the occurrence of chromosome abnormalities in callus cultures. In a previous work we detected anaphase bridges resulting from delayed chromatid separation at knob regions and typical bridges derived from dicentric chromatids in cultures. The analysis of altered chromosomes showed they were derived from a chromatid-type breakage-fusion-bridge (BFB) cycle. Fluorescent in situ hybridization (FISH) showed signals of telomere sequences in the broken chromosome arm, thus giving evidence of de novo telomere formation on the broken chromosome end. Further observations of long-and short-term cultures have shown the presence of chromosome alterations derived from BFB cycles followed by chromosome healing. Additionally, the occurrence of unequal crossing over in a knob region was observed in callus culture. These results are of interest for studies on the mechanisms of chromosome alterations during evolution.

show abstract

“…All of these events were analyzed by PGR using allele-specific primers that can detect polymorphisms in the al, yzl, and sh2 loci. inversions and translocations also reduce recombination rates/Mb (ROBERTSON 1967(ROBERTSON , 1984PHILLIPS 1969;CARLSON 1977). TiMMERMANS ef a/.…”

Section: Consistentmentioning

confidence: 99%

Characterization of meiotic recombination in maize using the a1-sh2 interval as a model system

View full text Add to dashboard Cite

The Cytogenetics of Corn

Cited by 24 publications

References 234 publications

The effect of stress on meiotic recombination in maize (Zea mays L)

The effect of stress on meiotic recombination in maize (Zea mays L)

Maize Chromosome Abnormalities and Breakage-Fusion-Bridge Cycles in Callus Cultures

Characterization of meiotic recombination in maize using the a1-sh2 interval as a model system

Contact Info

Product

Resources

About