Data/hora: 23/09/2024 15:03:37

Biblioteca(s): 	Embrapa Milho e Sorgo.	
Data corrente: 	19/03/2007	
Data da última atualização: 	06/06/2018	
Autoria: 	PEREIRA, L. K.; MANGOLIN, C. A.; SCAPIM, C. A.; PACHECO, C. A. P.; BONATO, C. M.; MACHADO, M. F. P. S.	
Afiliação: 	L. K. Pereira, Universidade de Maringá; C. A. Mangolin, Universidade de Maringá; CLESO ANTONIO PATTO PACHECO, CNPMS; C. M. Bonato, Universidade de Maringá; M. F. P. S. Machado, Universidade de Maringá.	
Título: 	Malate dehydrogenase isozyme patterns in four cycles of half-sib selection from CMS-43 popcorn variety (Zea mays L.).	
Ano de publicação: 	2006	
Fonte/Imprenta: 	Maydica, Bergamo, v. 51, n.3-4, p. 561-566, 2006.	
Idioma: 	Português	
Conteúdo: 	Malate dehydrogenase isozyme patterns in CMS-43 popcorn obtained from half-sib selection in four-year cycle (C0-CIV cycles) showed two active sMdh genes in coleoptiles tissues of all CMS-43 samples analysed and that particular physiological conditions seems produce a differential association of subunits coded by sMdh-1 and sMdh-2 loci. The sMDH-1/sMDH-2 heterodimer is always present in all coleoptiles samples while homodimers fluctuate in sMDH-1/sMDH-1 and sMDH-2/sMDH-2 subunit associations. Three mMdh loci containing significant frequencies of null alleles were identified at mMdh-1 and mMdh-2 loci. Null alleles, which result neither in active homodimers nor in heterodimers for mMdh-1 (mMdh-1n/n) and mMdh-2 (mMdb-2n/n) loci, and null alleles which result in inactive homodimers and active heterodimers for mMdh-1 (mMdh-1n/+) and mMdh-2 (mMdh-2n/+) loci, have been detected in CMS-43 coleoptiles. Frequencies of null alleles at mMdh-1 (40.6%) and mMdh-2 (6.2%) loci after four cycles of half-sib selection from CMS-43 popcorn cannot be considered as low..	
Palavras-Chave: 	angiosperms; Cyperales; eukaryotes; monocotyledons; plants; Spermatophyta.	
Thesaurus Nal: 	Poaceae; Zea.	
Categoria do assunto: 	S Ciências Biológicas	
Registro original: 	Embrapa Milho e Sorgo (CNPMS)	
Exemplares: 	CNPMS - (19710-1) - UPC - AP - DD -  -  -  - DIS