Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo.
The karyotypes of Zea luxurians and a race of maize from northwestern Argentina are described and compared using 4′,6-diamidino-2-phenylindole (DAPI) banding and fluorescent in situ hybridization (FISH) to localize the 180 bp knobs. The meiotic behavior of the F 1 artificial hybrids Z. luxurians × m...
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| Lenguaje: | English |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_08312796_v54_n1_p26_Gonzalez |
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todo:paper_08312796_v54_n1_p26_Gonzalez2023-10-03T15:40:16Z Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. González, G.E. Poggio, L. 4′,6-diamidino-2-phenylindole (DAPI) fluorescent in situ hybridization (FISH) hybrid karyotypes neocentromeres Zea 4',6 diamidino 2 phenylindole indole derivative Argentina article chemistry chimera cross breeding fluorescence in situ hybridization genetics karyotyping maize meiosis plant chromosome Poaceae Argentina Chimera Chromosomes, Plant Crosses, Genetic In Situ Hybridization, Fluorescence Indoles Karyotyping Meiosis Poaceae Zea mays Zea Zea luxurians Zea mays The karyotypes of Zea luxurians and a race of maize from northwestern Argentina are described and compared using 4′,6-diamidino-2-phenylindole (DAPI) banding and fluorescent in situ hybridization (FISH) to localize the 180 bp knobs. The meiotic behavior of the F 1 artificial hybrids Z. luxurians × maize is also analyzed to determine the genomic relationships between both species. Neocentromere activity at knobs in the meiosis of the hybrids is particularly discussed. The meiotic behavior and the high pollen sterility of the hybrid revealed genetical and (or) chromosomal divergences, leading to postzygotic reproductive isolation among their parents. Here, we propose that maize shows lower genomic affinity to Z. luxurians than to other species of the genus with 2n = 20. Fil:González, G.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08312796_v54_n1_p26_Gonzalez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| language |
English |
| orig_language_str_mv |
English |
| topic |
4′,6-diamidino-2-phenylindole (DAPI) fluorescent in situ hybridization (FISH) hybrid karyotypes neocentromeres Zea 4',6 diamidino 2 phenylindole indole derivative Argentina article chemistry chimera cross breeding fluorescence in situ hybridization genetics karyotyping maize meiosis plant chromosome Poaceae Argentina Chimera Chromosomes, Plant Crosses, Genetic In Situ Hybridization, Fluorescence Indoles Karyotyping Meiosis Poaceae Zea mays Zea Zea luxurians Zea mays |
| spellingShingle |
4′,6-diamidino-2-phenylindole (DAPI) fluorescent in situ hybridization (FISH) hybrid karyotypes neocentromeres Zea 4',6 diamidino 2 phenylindole indole derivative Argentina article chemistry chimera cross breeding fluorescence in situ hybridization genetics karyotyping maize meiosis plant chromosome Poaceae Argentina Chimera Chromosomes, Plant Crosses, Genetic In Situ Hybridization, Fluorescence Indoles Karyotyping Meiosis Poaceae Zea mays Zea Zea luxurians Zea mays González, G.E. Poggio, L. Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| topic_facet |
4′,6-diamidino-2-phenylindole (DAPI) fluorescent in situ hybridization (FISH) hybrid karyotypes neocentromeres Zea 4',6 diamidino 2 phenylindole indole derivative Argentina article chemistry chimera cross breeding fluorescence in situ hybridization genetics karyotyping maize meiosis plant chromosome Poaceae Argentina Chimera Chromosomes, Plant Crosses, Genetic In Situ Hybridization, Fluorescence Indoles Karyotyping Meiosis Poaceae Zea mays Zea Zea luxurians Zea mays |
| description |
The karyotypes of Zea luxurians and a race of maize from northwestern Argentina are described and compared using 4′,6-diamidino-2-phenylindole (DAPI) banding and fluorescent in situ hybridization (FISH) to localize the 180 bp knobs. The meiotic behavior of the F 1 artificial hybrids Z. luxurians × maize is also analyzed to determine the genomic relationships between both species. Neocentromere activity at knobs in the meiosis of the hybrids is particularly discussed. The meiotic behavior and the high pollen sterility of the hybrid revealed genetical and (or) chromosomal divergences, leading to postzygotic reproductive isolation among their parents. Here, we propose that maize shows lower genomic affinity to Z. luxurians than to other species of the genus with 2n = 20. |
| format |
JOUR |
| author |
González, G.E. Poggio, L. |
| author_facet |
González, G.E. Poggio, L. |
| author_sort |
González, G.E. |
| title |
Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| title_short |
Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| title_full |
Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| title_fullStr |
Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| title_full_unstemmed |
Karyotype of Zea luxurians and Z. mays subsp. mays using FISH/DAPI, and analysis of meiotic behavior of hybrids in memoriam of Dr. Carlos A. Naranjo. |
| title_sort |
karyotype of zea luxurians and z. mays subsp. mays using fish/dapi, and analysis of meiotic behavior of hybrids in memoriam of dr. carlos a. naranjo. |
| url |
http://hdl.handle.net/20.500.12110/paper_08312796_v54_n1_p26_Gonzalez |
| work_keys_str_mv |
AT gonzalezge karyotypeofzealuxuriansandzmayssubspmaysusingfishdapiandanalysisofmeioticbehaviorofhybridsinmemoriamofdrcarlosanaranjo AT poggiol karyotypeofzealuxuriansandzmayssubspmaysusingfishdapiandanalysisofmeioticbehaviorofhybridsinmemoriamofdrcarlosanaranjo |
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1807316495102902272 |