Abstract
Background Forestry companies have occupied Northern and Northeastern of Brazil with plantations of Eucalyptus species; however, limitations on water supply are affecting the biomass production and reducing the yield significantly [1].Tolerant plants develop defense mechanisms like hormone production of abscisic acid (ABA) and osmoprotector glycine betain (GB) when submitted to drought conditions [2]. Identifying and studying genomic regions related to water stress tolerance are important for tree improvement programs. In this work, SNPs in candidate genes, 9-cis-epoxy-carotenoid dioxygenase (NCED) and choline monooxygenase (CMO), of ABA and GB biosynthetic pathways related to drought tolerance in a population of Eucalyptus were identified, as well as, a possible molecular marker associated to genomic regions related to plant response to water stress through AFLP technique [3] combined with bulk segregant analysis method [4].
Highlights
Forestry companies have occupied Northern and Northeastern of Brazil with plantations of Eucalyptus species; limitations on water supply are affecting the biomass production and reducing the yield significantly [1].Tolerant plants develop defense mechanisms like hormone production of abscisic acid (ABA) and osmoprotector glycine betain (GB) when submitted to drought conditions [2]
SNPs in candidate genes, 9-cis-epoxy-carotenoid dioxygenase (NCED) and choline monooxygenase (CMO), of ABA and GB biosynthetic pathways related to drought tolerance in a population of Eucalyptus were identified, as well as, a possible molecular marker associated to genomic regions related to plant response to water stress through AFLP technique [3] combined with bulk segregant analysis method [4]
Seven SNPs were identified in a region of 1230 bp on NCED gene from which five were in codified regions and generated synonymous mutations
Summary
Cíntia Helena Duarte Sagawa1*, Leonardo Curi Martin, Andréia Santoro, Julio Cezar Santos Otto, Juliana Erika de Carvalho Teixeira, Rinal do César de Paula, Celso Luis Marino. From IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery Arraial d’Ajuda, Bahia, Brazil. From IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery Arraial d’Ajuda, Bahia, Brazil. 26 June - 2 July 2011
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