Effect of low temperature stress on gene expression of Houttuynia cordata Thunb.
To understand the difference in gene expression of Houttuynia cordata Thunb.under low temperature stress,the transcriptomes of H.cordata leaf tissues under low temperature stress were studied by using Illumina high-throughput RNA sequencing.The transcriptomes and CBF regulons under 4 h/15 h low temperature stress was compared.A total of 151823 unigenes were obtained,among which 75643 unigenes were annotated by seven data-bases.There were 1715 up-regulated and 1197 down-regulated unigenes under 4 h low temperature stress,and 4207 up-regulated and 2600 down-regulated unigenes under 15 h low temperature stress.The results of gene func-tion analysis showed that low temperature stress was correlated with cellular response to hypoxia,cellular response to water deprivation,and cellular response to cold.This study has provided reference for research on the cellular mech-anism of low temperature response of H.cordata Thunb.
Houttuynia cordata Thunb.transcriptomelow temperature stressgene
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