Asset Details
Do you wish to reserve the book?
Controlling diurnal flower‐opening time by manipulating the jasmonate pathway accelerates development of indica–japonica hybrid rice breeding
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?
Controlling diurnal flower‐opening time by manipulating the jasmonate pathway accelerates development of indica–japonica hybrid rice breeding
Do you wish to request the book?
Controlling diurnal flower‐opening time by manipulating the jasmonate pathway accelerates development of indica–japonica hybrid rice breeding
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
Controlling diurnal flower‐opening time by manipulating the jasmonate pathway accelerates development of indica–japonica hybrid rice breeding
2024
Overview
Summary Inter‐subspecific indica–japonica hybrid rice (Oryza sativa) has the potential for increased yields over traditional indica intra‐subspecies hybrid rice, but limited yield of F1 hybrid seed production (FHSP) hinders the development of indica–japonica hybrid rice breeding. Diurnal flower‐opening time (DFOT) divergence between indica and japonica rice has been a major contributing factor to this issue, but few DFOT genes have been cloned. Here, we found that manipulating the expression of jasmonate (JA) pathway genes can effectively modulate DFOT to improve the yield of FHSP in rice. Treating japonica cultivar Zhonghua 11 (ZH11) with methyl jasmonate (MeJA) substantially advanced DFOT. Furthermore, overexpressing the JA biosynthesis gene OPDA REDUCTASE 7 (OsOPR7) and knocking out the JA inactivation gene CHILLING TOLERANCE 1 (OsHAN1) in ZH11 advanced DFOT by 1‐ and 2‐h respectively; and knockout of the JA signal suppressor genes JASMONATE ZIM‐DOMAIN PROTEIN 7 (OsJAZ7) and OsJAZ9 resulted in 50‐min and 1.5‐h earlier DFOT respectively. The yields of FHSP using japonica male‐sterile lines GAZS with manipulated JA pathway genes were significantly higher than that of GAZS wildtype. Transcriptome analysis, cytological observations, measurements of elastic modulus and determination of cell wall components indicated that the JA pathway could affect the loosening of the lodicule cell walls by regulating their composition through controlling sugar metabolism, which in turn influences DFOT. This research has vital implications for breeding japonica rice cultivars with early DFOT to facilitate indica–japonica hybrid rice breeding.
