气候变化领域集成服务门户(CCPortal): Intraspecific diversity as a reservoir for heat-stress tolerance in sweet potato

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DOI	10.1038/s41558-020-00924-4
	Intraspecific diversity as a reservoir for heat-stress tolerance in sweet potato
	Heider B.; Struelens Q.; Faye É.; Flores C.; Palacios J.E.; Eyzaguirre R.; de Haan S.; Dangles O.
发表日期	2021
ISSN	1758-678X
起始页码	64
结束页码	69
卷号	11 期号:1
英文摘要	Stable and sufficient food supplies are increasingly threatened by climatic variability, in particular extreme heat events. Intraspecific crop diversity may be an important biological resource to both understand and maintain crop resilience to extreme conditions. Here using data from a mass field experiment screening for heat tolerance in sweet potato (Ipomoea batatas), we identify 132 heat-tolerant cultivars and breeding lines (6.7%) out of 1,973 investigated. Sweet potato is the world’s fifth most important food crop, and mean conditions experienced by sweet potato by 2070 are predicted to be 1 to 6 °C warmer, negatively impacting most genotypes. We identify canopy temperature depression, chlorophyll content and storage root-flesh colour as predictors of heat tolerance and, therefore, as potential traits for breeding consideration. These results highlight the role of intraspecific biodiversity for the productivity and resilience of food and agricultural systems in the face of climate change. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	agrometeorology; chlorophyll; climate variation; cultivar; ecosystem resilience; experimental study; genotype-environment interaction; interspecific variation; potato; temperature tolerance; Ipomoea batatas
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171615
作者单位	International Potato Center, Lima, Peru; Institut de Recherche pour le Développement, Centre d’Ecologie Fonctionnelle et Evolutive, UMR 5175, CNRS, Université de Montpellier, Université Paul Valéry, Montpellier, EPHE, IRD, Montpellier, France; Muséum National d’Histoire Naturelle, Sorbonne Universités, Paris, France; Centre International de Recherche en Agronomie pour le Développement, CIRAD, UPR HORTSYS, Montpellier, France; Piura, Peru
推荐引用方式 GB/T 7714	Heider B.,Struelens Q.,Faye É.,et al. Intraspecific diversity as a reservoir for heat-stress tolerance in sweet potato[J],2021,11(1).
APA	Heider B..,Struelens Q..,Faye É..,Flores C..,Palacios J.E..,...&Dangles O..(2021).Intraspecific diversity as a reservoir for heat-stress tolerance in sweet potato.Nature Climate Change,11(1).
MLA	Heider B.,et al."Intraspecific diversity as a reservoir for heat-stress tolerance in sweet potato".Nature Climate Change 11.1(2021).