Comparative transcriptomic analysis provides insight into carpel petaloidy in lotus ( Nelumbo nucifera )

PeerJ

article

Zhongyuan Lin¹  Dingding Cao¹  Rebecca Njeri Damaris²  Pingfang Yang² 

[1] Institute of Oceanography, Minjiang University;State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University

关键词: Nelumbo nucifera;    Flower morphology;    Petaloidy;    Floral organ;    MADS-box;   

DOI  :  10.7717/peerj.12322

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Lotus (Nelumbo nucifera) is a highly recognized flower with high ornamental value. Flower color and flower morphology are two main factors for flower lotus breeding. Petaloidy is a universal phenomenon in lotus flowers. However, the genetic regulation of floral organ petaloidy in lotus remains elusive. In this study, the transcriptomic analysis was performed among three organs, including petal, carpel petaloidy, and carpel in lotus. A total of 1,568 DEGs related to carpel petaloidy were identified. Our study identified one floral homeotic gene encoded by the MADS-box transcription factor, AGAMOUS (AG) as the candidate gene for petaloid in lotus. Meanwhile, a predicted labile boundary in floral organs of N. nucifera was hypothesized. In summary, our results explored the candidate genes related to carpel petaloidy, setting a theoretical basis for the molecular regulation of petaloid phenotype.

【 授权许可】

CC BY