Publications by authors named "Fabrice Foucher"

Article Synopsis
  • This study identifies the specific genetic locus responsible for self-incompatibility (SI) in roses and its genetic connection to traits like continuous flowering (CF).
  • It reports the discovery of new alleles in old Chinese CF cultivars and tracks their prevalence through breeding history, highlighting a significant rise in cultivars with these alleles over time.
  • Additionally, wild rose species carrying these alleles were located, reinforcing the idea that CF cultivars have hybrid origins within these wild populations.
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Nudix hydrolases are conserved enzymes ubiquitously present in all kingdoms of life. Recent research revealed that several Nudix hydrolases are involved in terpenoid metabolism in plants. In modern roses, RhNUDX1 is responsible for formation of geraniol, a major compound of rose scent.

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Prickles are common structures in plants that play a key role in defense against herbivores. In the Rosa genus, prickles are widely present with great diversity in terms of form and density. For cut rose production, prickles represent an important issue, as they can damage the flower and injure workers.

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Article Synopsis
  • * The study focuses on the genus Rosa, which includes about 150 species known for their complex hybridization and polyploidization, and aims to create a framework that captures these processes in their evolutionary relationships.
  • * By using amplicon sequencing, researchers developed strong nuclear and plastid phylogenies and proposed a new method to clarify the evolutionary history of Rosa species, which could also be applied to other complex taxonomic groups.
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Rose has 19 MLO genes. Of these, RhMLO1 and RhMLO2 were shown to be required for powdery mildew infection, which suggests their potential as susceptibility targets towards disease resistance. Powdery mildew, caused by Podosphaera pannosa, is one of the most serious and widespread fungal diseases for roses, especially in greenhouse-grown cut roses.

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Blooming seasonality is an important trait in ornamental plants and was selected by humans. Wild roses flower only in spring whereas most cultivated modern roses can flower continuously. This trait is explained by a mutation of a floral repressor gene, RoKSN, a TFL1 homologue.

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Introduction: Pelvic floor disorders (PFD) are common conditions impacting quality of life and sexuality may worsen after ovarian cancer therapies. Our objective was to describe the prevalence of PFD and sexuality in women with ovarian cancer (OC).

Methods: We reviewed articles indexed in the MEDLINE database until June 2020 and selected articles assessing UI, POP, FI and sexual dysfunction in a population of women with OC.

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Background: Uterine transplant (UT) represents an opportunity to treat absolute uterine infertility. However, the use of uterine veins for venous return, in addition to ovarian veins, significantly increases the risk of ureteral wounds in the living donor and UT time for the recipient. Our aim was to demonstrate that dual ovarian venous return is sufficient for graft viability and survival.

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Epithelial ovarian cancer (EOC) affects 43,000 women worldwide every year and has a five-year survival rate of 30%. Mainstay treatment is extensive surgery and chemotherapy. Outcomes could be improved by molecular profiling.

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Roses use a non-canonical pathway involving a Nudix hydrolase, RhNUDX1, to synthesize their monoterpenes, especially geraniol. Here we report the characterization of another expressed NUDX1 gene from the rose cultivar Rosa x wichurana, RwNUDX1-2. In order to study the function of the RwNUDX1-2 protein, we analyzed the volatile profiles of an F progeny generated by crossing R.

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The Rdr1 gene confers resistance to black spot in roses and belongs to a large TNL gene family, which is organized in two major clusters at the distal end of chromosome 1. We used the recently available chromosome scale assemblies for the R. chinensis 'Old Blush' genome, re-sequencing data for nine rose species and genome data for Fragaria, Rubus, Malus and Prunus to identify Rdr1 homologs from different taxa within Rosaceae.

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Background: Pelvic exenteration and its reconstructive techniques have been associated with high postoperative morbidity and a negative impact on patient quality of life. The aim of our study was to compare postoperative complications and quality of life in patients undergoing continent compared with non-continent urinary diversion after pelvic exenteration for gynecologic malignancies.

Methods: We designed a multicenter study of patients from 10 centers who underwent an anterior or total pelvic exenteration with urinary reconstruction for histologically confirmed persistent or recurrent gynecologic malignancy after previous treatment with radiotherapy.

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Background: With an ever-growing number of published genomes, many low levels of the Tree of Life now contain several species with enough molecular data to perform shallow-scale phylogenomic studies. Moving away from using just a few universal phylogenetic markers, we can now target thousands of other loci to decipher taxa relationships. Making the best possible selection of informative sequences regarding the taxa studied has emerged as a new issue.

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Introduction: This study sought to identify predictive factors of involved surgical margins in breast-conserving surgery (BCS) after neoadjuvant chemotherapy (NAC) to help guide the surgical procedure.

Materials And Methods: Retrospective study of patients who had BCS after NAC between January 2008 and December 2013.

Outcome Measure: tumor-involved margin, defined by tumor cells on ink for invasive cancer and tumor-free margin < 2 mm for DCIS.

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Article Synopsis
  • The completion of the rose genome sequence marks the beginning of new research opportunities, enabling advanced genomic tools and techniques for rose breeding.
  • The genetic diversity of cultivated roses stems from the genus's inherent genetic potential, the incorporation of wild species traits, and historical breeding efforts.
  • This paper explores future research directions in rose genomics, aiming to address both scientific inquiries and practical breeding challenges following the genome's completion.
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Floral scent is one of the most important characters in horticultural plants. Roses ( spp.) have been cultivated for their scent since antiquity.

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Background: The 2010 guidelines of the French National Cancer Institute (INCa) classify patients with endometrial cancer into three risk groups for lymph node invasion and recurrence on the basis of MRI and histological analysis of an endometrial specimen obtained preoperatively. The classification guides therapeutic choices, which may include pelvic and/or para-aortic lymphadenectomy. The purpose of this study was to evaluate the diagnostic performance of preoperative assessment to help identify intermediate- or high-risk patients requiring lymphadenectomy.

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Hybridization with introduced genetic resources is commonly practiced in ornamental plant breeding to introgress desired traits. The 19th century was a golden age for rose breeding in France. The objective here was to study the evolution of rose genetic diversity over this period, which included the introduction of Asian genotypes into Europe.

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The scent of roses (Rosa x hybrida) is composed of hundreds of volatile molecules. Monoterpenes represent up to 70% percent of the scent content in some cultivars, such as the Papa Meilland rose. Monoterpene biosynthesis in plants relies on plastid-localized terpene synthases.

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Shoot branching patterns result from the spatio-temporal regulation of axillary bud outgrowth. Numerous endogenous, developmental and environmental factors are integrated at the bud and plant levels to determine numbers of growing shoots. Multiple pathways that converge to common integrators are most probably involved.

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Objectives: The aim of this study was to assess the prognostic factors after curative pelvic exenterations performed for recurrent uterine cervical or vaginal cancers in the era of concomitant chemoradiotherapy.

Methods: We retrospectively enrolled 16 patients with recurrent uterine cervical or vaginal cancer and tumor-free resection margins on pelvic exenteration pathological analysis between October 1997 and April 2014.

Results: Pelvic exenterations were performed for 13 recurrent cervical cancers and 3 recurrent vaginal cancers.

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FT/TFL1 family members have been known to be involved in the development and flowering in plants. In rose, RoKSN, a TFL1 homologue, is a key regulator of flowering, whose absence causes continuous flowering. Our objectives are to functionally validate RoKSN and to explore its mode of action in rose.

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The Quantitative Trait Loci (QTL) mapping of plant architecture is a critical step for understanding the genetic determinism of plant architecture. Previous studies adopted simple measurements, such as plant-height, stem-diameter and branching-intensity for QTL mapping of plant architecture. Many of these quantitative traits were generally correlated to each other, which give rise to statistical problem in the detection of QTL.

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Light and temperature are two environmental factors that deeply affect bud outgrowth. However, little is known about their impact on the bud burst gradient along a stem and their interactions with the molecular mechanisms of bud burst control. We investigated this question in two acrotonic rose cultivars.

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Epithelial ovarian cancer (EOC) is a significant cause of cancer-related mortality in women, and there has been no substantial decrease in the death rates due to EOC in the last three decades. Thus, basic knowledge regarding ovarian tumor cell biology is urgently needed to allow the development of innovative treatments for EOC. Traditionally, EOC has not been considered an immunogenic tumor, but there is evidence of an immune response to EOC in patients.

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