Data/hora: 22/06/2024 03:19:06

Biblioteca(s): 	Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia.	
Data corrente: 	06/01/2016	
Data da última atualização: 	20/06/2024	
Autoria: 	LEAL-BERTIOLI, S. C. M.; MORETZSOHN, M. C.; ROBERTS, P. A.; BALLEN-TABORDA, C.; BORBA, T. C. O.; VALDISSER, P. A.; VIANELLO, R. P.; ARAUJO, A. C. G.; GUIMARAES, P. M.; BERTIOLI, D. J.	
Afiliação: 	SORAYA CRISTINA DE M LEAL BERTIOLI, CENARGEN; MARCIO DE CARVALHO MORETZSOHN, CENARGEN; PHILIP A. ROBERTS, University of California; CAROLINA BALLEN-TABORDA, University of Georgia; TEREZA CRISTINA DE OLIVEIRA BORBA, CNPAF; PAULA ARIELLE M RIBEIRO VALDISSER, CNPAF; ROSANA PEREIRA VIANELLO, CNPAF; ANA CLAUDIA GUERRA DE ARAUJO, CENARGEN; PATRICIA MESSEMBERG GUIMARAES, CENARGEN; DAVID J. BERTIOLI, University of Georgia.	
Título: 	Genetic mapping of resistance to Meloidogyne arenaria in arachis stenosperma: a new source of nematode resistance for peanut.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	G3: Genes, Genomes, Genetics, v. 12, 2015.	
DOI: 	10.1534/g3.115.023044	
Idioma: 	Inglês	
Conteúdo: 	Root-knot nematodes (RKN; Meloidogyne sp.) are a major threat to crops in tropical and subtropical regions worldwide. The use of resistant crop varieties is the preferred method of control because nematicides are expensive, and hazardous to humans and the environment. Peanut (Arachis hypogaea) is infected by four species of RKN, the most damaging being M. arenaria, and commercial cultivars rely on a single source of resistance. In this study, we genetically characterize RKN resistance of the wild Arachis species A. stenosperma using a population of 93 recombinant inbred lines developed from a cross between A. duranensis and A. stenosperma. Four quantitative trait loci (QTL) located on linkage groups 02, 04, and 09 strongly influenced nematode root galling and egg production. Drought-related, domestication and agronomically relevant traits were also evaluated, revealing several QTL. Using the newly available Arachis genome sequence, easy-to-use KASP (kompetitive allele specific PCR) markers linked to the newly identified RKN resistance loci were developed and validated in a tetraploid context. Therefore, we consider that A. stenosperma has high potential as a new source of RKN resistance in peanut breeding programs.	
Palavras-Chave: 	Marker-assisted; Nematode; Peanut; QTL; Root-knot.	
Thesagro: 	Amendoim; Meloidogyne arenaria; Nematoide.	
Thesaurus Nal: 	Arachis; Chromosome mapping; drought; Marker-assisted selection; Nematoda; Peanuts; Quantitative trait loci; Root-knot nematodes.	
Categoria do assunto: 	--
S Ciências Biológicas	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/158635/1/Genetic-mapping-of-resistance-to-Meloidogyne-arenaria-in-Arachis-stenosperma....pdf	
Registro original: 	Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)	
Exemplares: 	CENARGEN - (36142-1) - UPC - AP - DD -  -  -  - DIS
CNPAF - (33952-1) - UPC - AP - DD - 2016 -  - 2016 - DIS