Data/hora: 11/06/2024 01:34:15

Provedor de dados: | Genetics and Molecular Biology
País: | Brazil
Título: | Comparative linkage mapping of Oryza glumaepatula and Oryza sativa interspecific crosses based on microsatellite and expressed sequence tag markers
Autores: | Rangel,Priscila Nascimento; Brondani,Rosana Pereira Vianello; Coelho,Alexandre Siqueira Guedes; Rangel,Paulo Hideo Nakano; Brondani,Claudio.
Data: | 2007-01-01
Ano: | 2007
Palavras-chave: | Comparative linkage map; Molecular markers; Oryza glumaepatula; Rice.
Resumo: | Molecular linkage maps representing the rice genome have been an important tool for breeding programs because they allow the elucidation of polygenic traits and are an efficient tool for monitoring wild introgressions in interspecific crosses. Common markers among rice genetic maps are important in defining the homology of chromosomes and the synteny between genomic target regions. We used 148 markers (expressed sequence tags, microsatellites and single nucleotide polymorphisms) to construct a molecular linkage map based on co-dominant markers for an interspecific backcross population using a wild rice (Oryza glumaepatula) from Brazil and performed a comparative analysis with other interspecific maps. The comparative analysis revealed a Spearman correlation index of 0.86 for marker order conservation to a previous map constructed for an interspecific cross using the same wild parent. Approximately 90% of markers common to other interspecific maps kept the same order. These results indicate that it will be possible to generate a unique genetic map using the wild donor and that it may be a helpful tool for breeding programs because plants derived from different interspecific populations can be rapidly scanned using markers associated with useful wild traits.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400019
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572007000400019
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.30 n.3 2007
Fonte: | info:eu-repo/semantics/openAccess