Lv Shuzuo, Cheng Shu, Wang Zhanying, Li Shiming, Jin Xin, Lan Lei, Yang Bing, Yu Kang, Ni Xuemei, Li Ning, Hou Xiaogai, Huang Gang, Wang Jie, Dong Yang, Wang Erqiang, Huang Jiangtao, Zhang Gengyun, Zhang Canjun
Luoyang Academy of Agricultural and Forestry Sciences Luoyang Henan China.
BGI-Luoyang Agricultural innovation center Luoyang Henan China.
Ecol Evol. 2020 May 12;10(11):4518-4530. doi: 10.1002/ece3.5965. eCollection 2020 Jun.
Tree peony ( Sect) is a famous ornamental plant, with huge historical, cultural, and economic significance worldwide. In this study, we reported the ~13.79 Gb draft genome of a wide-grown cultivar "Luo shen xiao chun," representing the largest sequenced genome in dicots to date. Phylogenetic analyses based on genome sequences demonstrated that was placed as sister to Vitales, and they together formed a clade that was sister to Rosids, weakly supporting a relationship of ((Saxifragales and Vitales) and Rosids). The identification and expression analysis of MADS-box genes based on the genome assembly and de novo transcriptome assembly of revealed that the function of C class genes was restricted in flower development, which might be responsible for the stamen petalody in tree peony cultivars. Overall, the first sequenced genome in the family Paeoniaceae provides an important resource for the origin, domestication, and evolutionary study as well as cultivar breeding in tree peony.
牡丹（芍药属）是一种著名的观赏植物，在全球具有巨大的历史、文化和经济意义。在本研究中，我们报道了广泛种植的品种“洛神春”约13.79 Gb的基因组草图，这是迄今为止双子叶植物中测序的最大基因组。基于基因组序列的系统发育分析表明，牡丹被置于葡萄目姐妹群的位置，它们共同形成了一个与蔷薇类植物为姐妹群的分支，微弱支持了（（虎耳草目和葡萄目）与蔷薇类植物）的关系。基于牡丹基因组组装和从头转录组组装对MADS-box基因的鉴定和表达分析表明，C类基因的功能在花发育中受到限制，这可能是牡丹品种中雄蕊瓣化的原因。总体而言，芍药科首个测序的基因组为牡丹的起源、驯化、进化研究以及品种育种提供了重要资源。
