A central circadian oscillator confers defense heterosis in hybrids without growth vigor costs

Yang，Li1,2; Liu，Pengtao1; Wang，Xuncheng1; Jia，Aolin1; Ren，Diqiu1; Tang，Yaru2; Tang，Yaqi2; Deng，Xing Wang1,3; He，Guangming1

2021-12-01

10.1038/s41467-021-22268-z

Nature Communications   影响因子和分区

2041-1723

2041-1723

Plant immunity frequently incurs growth penalties, which known as the trade-off between immunity and growth. Heterosis, the phenotypic superiority of a hybrid over its parents, has been demonstrated for many traits but rarely for disease resistance. Here, we report that the central circadian oscillator, CCA1, confers heterosis for bacterial defense in hybrids without growth vigor costs, and it even significantly enhances the growth heterosis of hybrids under pathogen infection. The genetic perturbation of CCA1 abrogated heterosis for both defense and growth in hybrids. Upon pathogen attack, the expression of CCA1 in F hybrids is precisely modulated at different time points during the day by its rhythmic histone modifications. Before dawn of the first infection day, epigenetic activation of CCA1 promotes an elevation of salicylic acid accumulation in hybrids, enabling heterosis for defense. During the middle of every infection day, diurnal epigenetic repression of CCA1 leads to rhythmically increased chlorophyll synthesis and starch metabolism in hybrids, effectively eliminating the immunity-growth heterosis trade-offs in hybrids.

SCI

英语

NI期刊

通讯

National Key Research and Development Program of China["2016YFD0100801","2017YFA0503800"] ; National Natural Science Foundation of China[31871221,31621001] ; China Postdoctoral Science Foundation fellowship["2018M630029","2018T110007"]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000641850200008

NATURE RESEARCH

2-s2.0-85104501201

Scopus

1.School of Advanced Agricultural Sciences and School of Life Sciences,State Key Laboratory of Protein and Plant Gene Research,Peking-Tsinghua Center for Life Sciences,Peking University,Beijing,China
2.Department of Plant Pathology,China Agricultural University,Beijing,China
3.Peking University-Southern University of Science and Technology Institute of Plant and Food Science,Department of Biology,Southern University of Science and Technology,Shenzhen,China

Yang，Li,Liu，Pengtao,Wang，Xuncheng,et al. A central circadian oscillator confers defense heterosis in hybrids without growth vigor costs[J]. Nature Communications,2021,12(1).

Yang，Li.,Liu，Pengtao.,Wang，Xuncheng.,Jia，Aolin.,Ren，Diqiu.,...&He，Guangming.(2021).A central circadian oscillator confers defense heterosis in hybrids without growth vigor costs.Nature Communications,12(1).

Yang，Li,et al."A central circadian oscillator confers defense heterosis in hybrids without growth vigor costs".Nature Communications 12.1(2021).