Multivariate drought responses of North-African durum wheat varieties

With this report, we share the raw data of our experiments integrating controlled-environment phenomics to assess the drought response of ten durum wheat genotypes. These include the Tunisian landraces (Mahmoudi and Chili), 7 improved cultivars (Dhahbi, INRAT100, Karim, Khiar, Maali, Razzek, Salim) and the reference genotype ‘Svevo’. The plants were grown to maturity under well-watered or long-term drought conditions, enabling a comprehensive assessment of growth, yield components, root architecture, physiological traits, and reaction norm plasticity. We aim to identify phenotypic indicators that best discriminate against drought-tolerant performance by explicitly quantifying phenotypic plasticity (reaction norms) across key traits and linking these responses to transcriptional programs. The excel tables attached to this experimental report contains 27 sheets of phenotypical and physiological traits measured on the ten durum wheat cultivars grown either in pots or in rhizothron as well as the list of differentially expressed genes under drought compared to control conditions.本报告将共享我们整合可控环境表型组学（controlled-environment phenomics）开展的实验原始数据，用于评估10个硬粒小麦（durum wheat）基因型的干旱响应特性。供试材料包括突尼斯地方品种（Mahmoudi与Chili）、7个改良品种（Dhahbi、INRAT100、Karim、Khiar、Maali、Razzek、Salim）以及参考基因型‘Svevo’。供试植株在充分供水或长期干旱的条件下栽培至成熟，由此可全面评估其生长、产量构成因子、根系构型、生理性状以及反应规范可塑性（reaction norm plasticity）。本研究旨在通过明确量化关键性状的表型可塑性（即反应规范），并将这些响应与转录程序（transcriptional programs）相关联，从而筛选出最能区分耐旱表现的表型指标。本实验报告所附的Excel表格包含27个工作表，分别记录了在盆栽或根箱（rhizotron）中栽培的10个硬粒小麦品种的表型与生理性状测定数据，以及干旱处理相较于对照条件下的差异表达基因（differentially expressed genes）列表。