Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae)
In previous papers we found that the frequency of B chromosomes in native races of maize varies considerably in different populations. Moreover, we found genotypes that control high and low transmission rates (TR) of B chromosomes in the Pisingallo race. In the present work crosses were made to dete...
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1998
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paper:paper_00029122_v85_n11_p1581_Chiavarino2023-06-08T14:23:00Z Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) Chiavarino, Amílcar Mauricio Rosato, Carmen Luisa Marcela Poggio, Lidia Naranjo, Carlos Alberto B chromosome B transmission rate control Maize Maize native races Poaceae Zea mays ssp. mays Zea mays In previous papers we found that the frequency of B chromosomes in native races of maize varies considerably in different populations. Moreover, we found genotypes that control high and low transmission rates (TR) of B chromosomes in the Pisingallo race. In the present work crosses were made to determine whether the genes controlling B-TR are located on the normal chromosome set (As) or on the B chromosomes (Bs). We made female f.0B x male m.2B crosses between and within high (H) and low (L) B-TR groups. The Bs were transmitted on the male side in all cases. The mean B-TR from the progeny of f.0B (H) x m.2B (H) and f.0B (H) x m.2B (L) crosses was significantly higher than that from f.0B (L) x m.2B (L) and f.0B (L) x m.2B (H) crosses. The results show that the B-TR of the crosses corresponds to the H or L B-TR of the 0B female parents irrespective of the Bs of the male parent. This indicates that B-TR is genetically controlled by the 0B female parent and that these genes are located on the A chromosomes. Fil:Chiavarino, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rosato, M. 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. Fil:Naranjo, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029122_v85_n11_p1581_Chiavarino http://hdl.handle.net/20.500.12110/paper_00029122_v85_n11_p1581_Chiavarino |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
B chromosome B transmission rate control Maize Maize native races Poaceae Zea mays ssp. mays Zea mays |
spellingShingle |
B chromosome B transmission rate control Maize Maize native races Poaceae Zea mays ssp. mays Zea mays Chiavarino, Amílcar Mauricio Rosato, Carmen Luisa Marcela Poggio, Lidia Naranjo, Carlos Alberto Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
topic_facet |
B chromosome B transmission rate control Maize Maize native races Poaceae Zea mays ssp. mays Zea mays |
description |
In previous papers we found that the frequency of B chromosomes in native races of maize varies considerably in different populations. Moreover, we found genotypes that control high and low transmission rates (TR) of B chromosomes in the Pisingallo race. In the present work crosses were made to determine whether the genes controlling B-TR are located on the normal chromosome set (As) or on the B chromosomes (Bs). We made female f.0B x male m.2B crosses between and within high (H) and low (L) B-TR groups. The Bs were transmitted on the male side in all cases. The mean B-TR from the progeny of f.0B (H) x m.2B (H) and f.0B (H) x m.2B (L) crosses was significantly higher than that from f.0B (L) x m.2B (L) and f.0B (L) x m.2B (H) crosses. The results show that the B-TR of the crosses corresponds to the H or L B-TR of the 0B female parents irrespective of the Bs of the male parent. This indicates that B-TR is genetically controlled by the 0B female parent and that these genes are located on the A chromosomes. |
author |
Chiavarino, Amílcar Mauricio Rosato, Carmen Luisa Marcela Poggio, Lidia Naranjo, Carlos Alberto |
author_facet |
Chiavarino, Amílcar Mauricio Rosato, Carmen Luisa Marcela Poggio, Lidia Naranjo, Carlos Alberto |
author_sort |
Chiavarino, Amílcar Mauricio |
title |
Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
title_short |
Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
title_full |
Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
title_fullStr |
Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
title_full_unstemmed |
Localization of the genes controlling B chromosome transmission rate in maize (Zea mays ssp. mays, Poaceae) |
title_sort |
localization of the genes controlling b chromosome transmission rate in maize (zea mays ssp. mays, poaceae) |
publishDate |
1998 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029122_v85_n11_p1581_Chiavarino http://hdl.handle.net/20.500.12110/paper_00029122_v85_n11_p1581_Chiavarino |
work_keys_str_mv |
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1768542011891122176 |