Chloroplast (Cp) Transcriptome of P. davidiana Dode×P. bolleana Lauch provides insight into the Cp drought response and Populus Cp phylogeny.

"after the chloroplast genome assembly was qualified it was submitted to the genbank database under accession number mn190025.; availability of data and materials illumina hiseq 2500 data have been submitted to the sequence read archive (sra) of the national center for biotechnology information (ncbi) under accession number prjna534167.; the complete cp genome of populus davidiana dodexpopulus bolleana lauch was submitted to genbank under accession number mn190025. availability of data and materials illumina hiseq 2500 data have been submitted to the sequence read archive (sra) of the national center for biotechnology information (ncbi) under accession number prjna534167"

"Competing interests The authors declare no conflicts of interest."

"Funding This work was supported by the National Natural Science Foundation of China (No 30571513), Overseas Expertise Introduction Project for Discipline Innovation (B16010) and Heilongjiang Touyan Innovation Team Program (Tree Genetics and Breeding Innovation Team). The funding bodies played no role in the design of the study; collection, analysis, or interpretation of data or writing of the manuscript."