A trade-off between investment in molecular defense repertoires and growth in plants

• 成果类型: Article
• 署名作者: Giolai, Michael; Laine, Anna-Liisa
• 署名单位: University of Helsinki
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13814
• DOI: 10.1126/science.adn2779
• 发表日期: 2024-11-08
• 页码: 677-680
• 关键词: disease resistance; fitness costs; r package; database; HISTORY; EVOLUTION; diversity; expansion; benefits; ecology

摘要

Given the negative fitness effects that pathogens impose on their hosts, the benefits of resistance should be universal. However, there is marked variation across plant species in the number of nucleotide-binding leucine-rich repeat receptors, which form a cornerstone of defense. The growth-defense trade-off hypothesis predicts costs associated with defense investment to generate variation in these traits. Our analysis comparing features of the intracellular immune-receptor repertoires with trait data of 187 species shows that in wild plants, the size of the molecular defense repertoire correlates negatively with growth. By contrast, we do not find evidence for a growth-defense trade-off in agricultural plants. Our cross-species approach highlights the central role of defense investment in shaping ecological trait variation and its sensitivity to domestication.