(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.) > cellular organisms: NE > Eukaryota: NE > Viridiplantae: NE > Streptophyta: NE > Streptophytina: NE > Embryophyta: NE > Tracheophyta: NE > Euphyllophyta: NE > Spermatophyta: NE > Magnoliophyta: NE > Mesangiospermae: NE > eudicotyledons: NE > Gunneridae: NE > Pentapetalae: NE > rosids: NE > malvids: NE > Sapindales: NE > Sapindaceae: NE > Hippocastanoideae: NE > Acereae: NE > Acer: NE > Acer yangbiense: NE
LegendThis sequence has been compared to family alignement (MSA) red => minority aminoacid blue => majority aminoacid color intensity => conservation rate title => sequence position(MSA position)aminoacid rate Catalytic site Catalytic site in the MSA MASRRLGEVIKVSEELIKKACSLAMKAHKSPEKLYLVEKSRSSTEVIFSF PGYWSVDNWFTGSPFGEKKIDLGKFDSLKNIGNEDVAIFNEAFLNRFDAI LSQLQIEVRKAVTEKKKIVFTGHSSGGPIAILAAVWFLQNGLDLNKTMKP LCITFGSPLVGDRIFNHALSREDWSQCFTHFVMRYDIFPRVPLAPLESTA SQLHHILPLLNPKQTAQASFEEAAKALYWNVMRNASSVASNAACHLMGNT NKLLETISSFVKLSPYRPFGTYVFCTGNGRLVVVRNPDSVLQILFYSSQL SSGEGSEICTRSVKDHFGYQSEIQSLEAKTVTDLDQFEELPLSSNGGGGA GSSGIDIVLNELGLSTRARLCLCAAAELEKQKLRNQKKINDKIPDIEQAL KILEGYKARCEAREVSYYDAFKASRDPDDFNANVKRLALAGICDEIMEML KKYDLPDGFEGCQEWVKLGTRYRLIVEPLDIANYYRHLKNEDTGPYMTKG RPRRYRYTQKWLEYAEHSPTGTRLESSFWAQVEELIQTSNRNPFEAVQAK VSHLESQVKTWIEEGVLGDDIFLENSTFVNWWKSHPQHHTSTPWFSTRIK
BACKGROUND: Acer yangbiense is a newly described critically endangered endemic maple tree confined to Yangbi County in Yunnan Province in Southwest China. It was included in a programme for rescuing the most threatened species in China, focusing on "plant species with extremely small populations (PSESP)". FINDINGS: We generated 64, 94, and 110 Gb of raw DNA sequences and obtained a chromosome-level genome assembly of A. yangbiense through a combination of Pacific Biosciences Single-molecule Real-time, Illumina HiSeq X, and Hi-C mapping, respectively. The final genome assembly is -666 Mb, with 13 chromosomes covering -97% of the genome and scaffold N50 sizes of 45 Mb. Further, BUSCO analysis recovered 95.5% complete BUSCO genes. The total number of repetitive elements account for 68.0% of the A. yangbiense genome. Genome annotation generated 28,320 protein-coding genes, assisted by a combination of prediction and transcriptome sequencing. In addition, a nearly 1:1 orthology ratio of dot plots of longer syntenic blocks revealed a similar evolutionary history between A. yangbiense and grape, indicating that the genome has not undergone a whole-genome duplication event after the core eudicot common hexaploidization. CONCLUSION: Here, we report a high-quality de novo genome assembly of A. yangbiense, the first genome for the genus Acer and the family Aceraceae. This will provide fundamental conservation genomics resources, as well as representing a new high-quality reference genome for the economically important Acer lineage and the wider order of Sapindales.