دورية أكاديمية
Direct evidence for crossover and chromatid interference in meiosis of two plant hybrids (Lolium multiflorum×Festuca pratensis and Allium cepa×A. roylei).
| العنوان: | Direct evidence for crossover and chromatid interference in meiosis of two plant hybrids (Lolium multiflorum×Festuca pratensis and Allium cepa×A. roylei). |
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| المؤلفون: | Ferreira MTM; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic.; Department of Biology, Federal University of Lavras, Lavras-MG, Brazil., Glombik M; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic.; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlarska, Brno, Czech Republic., Perničková K; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic.; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlarska, Brno, Czech Republic., Duchoslav M; Department of Botany, Faculty of Science, Palacký University, Olomouc, Czech Republic., Scholten O; Plant Breeding, Wageningen University & Research, Wageningen, The Netherlands., Karafiátová M; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic., Techio VH; Department of Biology, Federal University of Lavras, Lavras-MG, Brazil., Doležel J; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic., Lukaszewski AJ; Department of Botany and Plant Sciences, University of California, Riverside, CA, USA., Kopecký D; Institute of Experimental Botany, Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czech Republic. |
| المصدر: | Journal of experimental botany [J Exp Bot] 2021 Feb 02; Vol. 72 (2), pp. 254-267. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 9882906 Publication Model: Print Cited Medium: Internet ISSN: 1460-2431 (Electronic) Linking ISSN: 00220957 NLM ISO Abbreviation: J Exp Bot Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Oxford, UK : Oxford University Press, |
| مواضيع طبية MeSH: | Festuca*/genetics , Lolium*/genetics, Chromatids/genetics ; Crossing Over, Genetic ; Meiosis/genetics ; Onions |
| مستخلص: | Crossing over, in addition to its strictly genetic role, also performs a critical mechanical function, by bonding homologues in meiosis. Hence, it is responsible for an orderly reduction of the chromosome number. As such, it is strictly controlled in frequency and distribution. The well-known crossover control is positive crossover interference which reduces the probability of a crossover in the vicinity of an already formed crossover. A poorly studied aspect of the control is chromatid interference. Such analyses are possible in very few organisms as they require observation of all four products of a single meiosis. Here, we provide direct evidence of chromatid interference. Using in situ probing in two interspecific plant hybrids (Lolium multiflorum×Festuca pratensis and Allium cepa×A. roylei) during anaphase I, we demonstrate that the involvement of four chromatids in double crossovers is significantly more frequent than expected (64% versus 25%). We also provide a physical measure of the crossover interference distance, covering ~30-40% of the relative chromosome arm length, and show that the centromere acts as a barrier for crossover interference. The two arms of a chromosome appear to act as independent units in the process of crossing over. Chromatid interference has to be seriously addressed in genetic mapping approaches and further studies. (© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.) |
| فهرسة مساهمة: | Keywords: Centromere; chromatid interference; crossover interference; homoeologous chromosome; hybrid; meiosis; recombination |
| تواريخ الأحداث: | Date Created: 20201008 Date Completed: 20210513 Latest Revision: 20210513 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC7853598 |
| DOI: | 10.1093/jxb/eraa455 |
| PMID: | 33029645 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1460-2431 |
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| DOI: | 10.1093/jxb/eraa455 |