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Morphological studies of rose prickles provide new in sights

Horticulture Research 2021年第1期8卷 2849-2860页

作者： Ningning Zhou Fabienne Simonneau Tatiana Thouroude Laurence Hibrand-Saint Oyant fabrice foucher Univ Angers Institut AgroINRAEIRHSSFR QUASAVF-49000 AngersFrance National Engineering Research Center for Ornamental Horticulture Flower Research Institute(FRI)Yunnan Academy of Agricultural SciencesKunming 650231China Univ Angers INRAESFR QUASAVF-49000 AngersFrance

Prickles are common structures in plants that play a key role in defense against *** the Rosa genus,prickles are widely present with great diversity in terms of form and *** cut rose production,prickles represent an important issue,as they can damage the flower and injure *** objectives were to precisely describe the types of prickles that exist in roses,their tissues of origin and their *** performed a detailed histological analysis of prickle initiation and development in a rose F1 *** on the prickle investigation of 110 roses,we proposed the fi rst categorization of prickles in the Rosa *** are mainly divided into two categories,nonglandular prickles(NGPs)and glandular prickles(GPs),and subcategories were defined based on the presence/absence of hairs and *** demonstrated that NGPs and GPs both originate from multiple cells ofthe ground meristem beneath the *** GPs,the gland cells originate from the protoderm of the GP at the early developmental *** findings clearly demonstrate that prickles are notmodified trichomes(which originate from the protoderm).These conclusions are different from the current mainstream *** results provide a foundation for further studies on prickle initiation and development in plants.

关键词： beneath origin Morphological

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Diversity and selection of the continuous-flowering gene, RoKSN, in rose

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Horticulture Research 2021年第1期8卷 1155-1165页

作者： Vanessa Soufflet-Freslon Emilie Araou Julien Jeauffre Tatiana Thouroude Annie Chastellier Gilles Michel Yuki Mikanagi Koji Kawamura Mark Banfield Cristiana Oghina-Pavie Jeremy Clotault Alix Pernet fabrice foucher Univ Angers Institut AgroINRAEIRHSSFR QUASAVF-49000 AngersFrance49071 BeaucouzeFrance Natural History Museum and Institute ChibaJapan Osaka Institute of Technology OsakaJapan Department of Biological Chemistry John Innes CentreNorwich Research ParkNorwichUK Univ Angers CNRSTEMOSSFR CONFLUENCESAngers F-49000France

Blooming seasonality is an important trait in ornamental plants and was selected by *** roses flower only in spring whereas most cultivated modern roses can flower *** trait is explained by a mutation of a floral repressor gene,RoKSN,a TFL1 *** this work,we studied the origin,the diversity and the selection of the RoKSN *** analyzed 270 accessions,including wild and old cultivated Asian and European roses as well as modern *** sequencing the RoKSN gene,we proposed that the allele responsible for continuous-flowering,RoKSN copia,originated from Chinese wild roses(Indicae section),with a recent insertion of the copia *** cultivated Asian roses with the RoKSN copia allele were introduced in Europe,and the RoKSN copia allele was progressively selected during the 19th and 20th centuries,leading to continuous-flowering modern ***,we detected a new allele,RoKSN A181,leading to a weak *** allele encodes a functional floral repressor and is responsible for a moderate accumulation of RoKSN transcripts.A transient selection of this RoKSN A181 allele was observed during the 19th *** work highlights the selection of different alleles at the RoKSN locus for recurrent blooming in rose.

关键词： originated selection insertion

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In the name of the rose:a roadmap for rose research in the genome era

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Horticulture Research 2019年第1期6卷 948-964页

作者： Marinus J.M.Smulders Paul Arens Peter M.Bourke Thomas Debener Marcus Linde Jan De Riek Leen Leus Tom Ruttink Sylvie Baudino Laurence Hibrant Saint-Oyant Jeremy Clotault fabrice foucher Plant Breeding Wageningen University and ResearchP.O.Box 3866700 AJ WageningenThe Netherlands Faculty of Natural Sciences Institute for Plant GeneticsMolecular Plant BreedingLeibniz University of HannoverHerrenhäuser Strasse 230419 HannoverGermany ILVO Plant Sciences UnitFlanders Research Institute for AgricultureFisheries and FoodCaritasstraat 399090 MelleBelgium BVpam CNRS FRE 3727UJM-Saint-ÉtienneUniv.LyonSaint-EtienneFrance IRHS Agrocampus-OuestINRAUniversitéd’AngersSFR 4207 QuaSaV42 rue Georges Morel BP 6005749071 BeaucouzéFrance

The recent completion of the rose genome sequence is not the end of a process,but rather a starting point that opens up a whole set of new and exciting *** to a high-quality genome sequence other genomic tools have also become available for rose,including transcriptomics data,a high-density single-nucleotide polymorphism array and software to perform linkage and quantitative trait locus mapping in *** cultivars are highly heterogeneous and *** vast diversity in cultivated roses can be explained through the genetic potential of the genus,introgressions from wild species into commercial tetraploid germplasm and the inimitable efforts of historical *** can now investigate how this diversity can best be exploited and refined in future breeding work,given the rich molecular toolbox now available to the rose breeding *** paper presents possible lines of research now that rose has entered the genomics era,and attempts to partially answer the question that arises after the completion of any draft genome sequence:‘Now that we have“the”genome,what’s next?’.Having access to a genome sequence will allow both(fundamental)scientific and(applied)breeding-orientated questions to be *** outline possible approaches for a number of these questions.

关键词： breeding cultivar linkage

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