The genomic and bulked segregant analysis of Curcuma alismatifolia revealed its diverse bract pigmentation

• DOI: 10.1007/s42994-022-00081-6
• Publication Date: 2022-10-06T15:06:35Z
• Authors: Xuezhu Liao; Yuanjun Ye; Xiaoni Zhang; Dan Peng; Mengmeng Hou; Gaofei Fu; Jianjun Tan; Jianli Zhao; Rihong Jiang; Yechun Xu; Jinmei Liu; Jinliang Yang; Wusheng Liu; Luke R. Tembrock; Genfa Zhu; Zhiqiang Wu
• Keywords: Bulked segregant analysis

Abstract Compared with most flowers where the showy part comprises specialized leaves (petals) directly subtending reproductive structures, Zingiberaceae species produce “flowers” through modifications of (bracts) true throughout an inflorescence. Curcuma alismatifolia , belonging to family, a plant originating from Southeast Asia, has become increasingly popular in flower market worldwide because its varied and esthetically pleasing bracts produced different cultivars. Here, we present chromosome-scale genome assembly C. “Chiang Mai Pink” explore underlying mechanisms bract pigmentation. Comparative genomic analysis revealed contains residual signal whole-genome duplication. Duplicated genes, including pigment-related exhibit functional structural differentiation resulting diverse colors among In addition, identified key genes that colored such as F3′5'H DFR ANS several transcription factors for anthocyanin synthesis, well chlH CAO chlorophyll synthesis pathway by conducting transcriptomic analysis, bulked segregant using both DNA RNA data, population analysis. This work provides data understanding mechanism pigmentation will accelerate breeding developing novel cultivars richly related species. It is also important understand variation evolution family.