Open AccessComparative transcriptomic analysis provides insight into carpel petaloidy in lotus (Nelumbo nucifera)
Author(s) -
Zhongyuan Lin,
Dingding Cao,
Rebecca Njeri Damaris,
Pingfang Yang
Publication year - 2021
Publication title -
peerj
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.927
H-Index - 70
ISSN - 2167-8359
DOI - 10.7717/peerj.12322
Subject(s) - lotus , agamous , gynoecium , petal , biology , homeotic gene , mads box , botany , nelumbo nucifera , gene , stamen , phenotype , genetics , arabidopsis , pollen , mutant
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.