Asset Details
Do you wish to reserve the book?
Active suppression of leaflet emergence as a mechanism of simple leaf development
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Active suppression of leaflet emergence as a mechanism of simple leaf development
Do you wish to request the book?
Active suppression of leaflet emergence as a mechanism of simple leaf development
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Active suppression of leaflet emergence as a mechanism of simple leaf development
2021
Overview
Angiosperm leaves show extensive shape diversity and are broadly divided into two forms; simple leaves with intact lamina and compound leaves with lamina dissected into leaflets. The mechanistic basis of margin dissection and leaflet initiation has been inferred primarily by analysing compound-leaf architecture, and thus whether the intact lamina of simple leaves has the potential to initiate leaflets upon endogenous gene inactivation remains unclear. Here, we show that the CINCINNATA-like TEOSINTE BRANCHED1, CYCLOIDEA, PROLIFERATING CELL FACTORS (CIN-TCP) transcription factors activate the class II
KNOTTED1-LIKE
(
KNOX-II
) genes and the CIN-TCP and KNOX-II proteins together redundantly suppress leaflet initiation in simple leaves. Simultaneous downregulation of CIN-TCP and KNOX-II in
Arabidopsis
leads to the reactivation of the stemness genes
KNOX-I
and
CUPSHAPED COTYLEDON
(
CUC
) and triggers ectopic organogenesis, eventually converting the simple lamina to a super-compound form that appears to initiate leaflets indefinitely. Thus, a conserved developmental mechanism promotes simple leaf architecture in which CIN-TCP–KNOX-II forms a strong differentiation module that suppresses the KNOX-I-CUC network and leaflet initiation.
Do simple leaves have the potential to become compound leaves? In
Arabidopsis
, the combined action of CINCINNATA-like TEOSINTE BRANCHED1, CYCLOIDEA, PROLIFERATING CELL FACTORS (CIN-TCP) transcription factors and class II
KNOTTED1-LIKE
(
KNOX-II
) transcription factors suppresses leaflet initiation in simple leaves. Downregulation of these genes leads to super-compound leaves.
Publisher
Nature Publishing Group UK,Nature Publishing Group
