作者
Jérôme Bartholomé, André Mabiala, Bruno Savelli, Didier Bert, Oliver Brendel, Christophe Plomion, Jean‐Marc Gion
发表日期
2015/6
期刊
New Phytologist
卷号
206
期号
4
页码范围
1437-1449
简介
- In the context of climate change, the water‐use efficiency (WUE) of highly productive tree varieties, such as eucalypts, has become a major issue for breeding programmes. This study set out to dissect the genetic architecture of carbon isotope composition (δ13C), a proxy of WUE, across several environments.
- A family of Eucalyptus urophylla × E. grandis was planted in three trials and phenotyped for δ13C and growth traits. High‐resolution genetic maps enabled us to target genomic regions underlying δ13C quantitative trait loci (QTLs) on the E. grandis genome.
- Of the 15 QTLs identified for δ13C, nine were stable across the environments and three displayed significant QTL‐by‐environment interaction, suggesting medium to high genetic determinism for this trait. Only one colocalization was found between growth and δ13C. Gene ontology (GO) term enrichment analysis suggested candidate genes related to …
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J Bartholomé, A Mabiala, B Savelli, D Bert, O Brendel… - New Phytologist, 2015