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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Autores principales: Chiavarino, Amílcar Mauricio, Rosato, Carmen Luisa Marcela, Poggio, Lidia, Naranjo, Carlos Alberto
Publicado: 1998
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Acceso en línea: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
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spelling 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
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