Citrus Reproductive Biology from Flowering to Fruiting

Distefano, Gaetano; Casas, Giuseppina Las; Deng, Xiuxin; Chai, Lijun

doi:10.1007/978-3-030-15308-3_9

Cited by 4 publications

(4 citation statements)

References 67 publications

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“…The admixtures of lemon, tangerine, lime, and orange were observed in pomelo and citron varieties and trifoliate orange. This indicates that sexual reproduction more frequently occurs in mono-embryonic wild relatives and ancestral citrus species rather than in secondary hybrid species, which is consistent with other studies [6,19,33].…”

Section: Genetic Structure Of the Citrus Germplasm Collection Based O...supporting

confidence: 92%

“…Currently, this citrus collection consists of more than 200 accessions 2 of 13 maintained in the FRC SSC RAS, which were phenotypically characterized over decades [4]. The sets of locally derived accessions are of unknown origin, some of them forming from asexual reproduction [5,6] and others from free pollination and controlled hybridization. Among them are a broad set of frost-tolerant lemon and mandarin genotypes [4].…”

Section: Introductionmentioning

confidence: 99%

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InDel and SCoT Markers for Genetic Diversity Analysis in a Citrus Collection from the Western Caucasus

Kulyan

Самарина

Shkhalakhova

et al. 2023

IJMS

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Citrus collections from extreme growing regions can be an important source of tolerant germplasms for the breeding of cold-tolerant varieties. However, the efficient utilization of these germplasms requires their genetic background information. Thus, efficient marker systems are necessary for the characterization and identification of valuable accessions. In this study, the efficiency of 36 SCoT markers and 60 InDel markers were evaluated as part of the broad citrus collection of the Western Caucasus. The interspecific and intraspecific genetic diversity and genetic structures were analyzed for 172 accessions, including 31 species and sets of the locally derived cultivars. Single markers, such as SCoT18 (0.84), SCoT20 (0.93), SCoT23 (0.87), SCoT31 (0.88), SCoT36 (0.87) и LG 1-4 (0.94), LG 4-3 (0.86), LG 7-11 (0.98), and LG 8-10 (0.83), showed a high discriminating power, indicating the good applicability of these markers to assess intraspecific diversity of the genus Citrus. Overall, SCoT markers showed a higher level of polymorphism than InDel markers. According to analysis of population structure, SCoT and InDel markers showed K = 9 and K = 5 genetic clusters, respectively. The lowest levels of genetic admixtures and diversity were observed among the locally derived satsumas and lemons. The highest level of genetic admixtures was observed in the lime group. Phylogenetic relationships indicated a high level of interspecific genetic diversity but a low level of intraspecific diversity in locally derived satsumas and lemons. The results provide new insight into the origin of citrus germplasms and their distribution in colder regions. Furthermore, they are important for implementing conservation measures, controlling genetic erosion, developing breeding strategies, and improving breeding efficiency.

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Section: Genetic Structure Of the Citrus Germplasm Collection Based O...supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

InDel and SCoT Markers for Genetic Diversity Analysis in a Citrus Collection from the Western Caucasus

Kulyan

Самарина

Shkhalakhova

et al. 2023

IJMS

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“…Seedless fruit demand is high because of aesthetic reasons and ease in consumption (Zhao et al 2020). The natural phenomenon behind seedless fruit production is parthenocarpy (Distefano et al 2020). Pollen incompatibility, or ovule and pollen self-incompatibility are among the major natural causes of seedlessness in Kinnow mandarin (Altaf et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Whole-Genome Sequencing and Variant Discovery ofCitrus reticulata‘Kinnow’ from Pakistan

Jabeen

Saif

Haq

et al. 2022

Preprint

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Citrus is a source of many nutritional and medicinal advantages, which is cultivated worldwide with major citrus groups of sweet oranges, mandarins, grapefruits, kumquats, lemons and limes. Pakistan produces all of its major citrus groups with mandarin (Citrus reticulata) being the prominent group that includes local commercial cultivars such as Feutral's Early, Dancy, Honey and Kinnow. The present study was designed to understand the genetic architecture of this unique variety of Citrus reticulata -'Kinnow'. The whole-genome resequencing and variant calling was performed to map the genomic variability that might be responsible for its particular characteristics like taste, seedlessness, juice content, thickness of peel and shelf-life. A total of 139,436,350 raw sequence reads using Illumina platform were generated with 20.9 Gb data in Fastq format having 98% effectiveness and 0.2% base call error rate. Overall, a total of 3,503,033 SNPs, 176,949 MNPs, 323,287 INS and 333,083 DEL were identified using the GATK4 variant calling pipeline against Citrus clementina as a reference genome. Further, g:Profiler bioinformatics tool was applied for annotating the newly found variants, harbor genes/transcripts and their involved pathways. A total of 73,864 transcripts harbors 4,336,352 variants, most of the observed variants were predicted in non-coding regions and 1,009 transcripts were found well annotated by different databases. Out of the total aforementioned transcripts, 588 involved in biological processes, 234 in molecular functions and 167 transcripts involved in cellular components in Citrus reticulata. In a nutshell, 18,153 high-impact variants and 216 genic-variants found in the current study which may be used for marker-assisted breeding programs of 'Kinnow' to identify this particular variety among others and to propagate its valued traits to improve the contemporary citrus varieties as well.

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“…This is opposed to zygotic embryos, which contain genetic material of both parents (in mono-embryonic seeds). This process slows down or even stops the evolutionary process, thus making it again hard for taxonomists using morphological features to understand the true lineage [1,5,6]. ------Clauseneae ------Citrae (Aurantieae) ---------Triphasinae ---------Balsamocitrinae ---------Citrinae ----------- --------------Clymenia ---------------Eremocitrus ---------------Microcitrus ---------------Poncirus ---------------Fortunella ---------------Citrus ------------------Papeda ------------------Eucitrus (Citrus)…”

Section: Introductionmentioning

confidence: 99%

Bergamot Oil: Botany, Production, Pharmacology

Valussi¹,

Donelli

Firenzuoli

et al. 2021

Encyclopedia

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Bergamot essential oil (BEO) is the result of the mechanical manipulation (cold pressing) of the exocarp (flavedo) of the hesperidium of Citruslimon (L.) Osbeck Bergamot Group (synonym Citrus × bergamia Risso & Poit.), resulting in the bursting of the oil cavities embedded in the flavedo and the release of their contents. It is chemically dominated by monoterpene hydrocarbons (i.e., limonene), but with significant percentages of oxygenated monoterpenes (i.e., linalyl acetate) and of non-volatile oxygen heterocyclic compounds (i.e., bergapten).

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Citrus Reproductive Biology from Flowering to Fruiting

Cited by 4 publications

References 67 publications

InDel and SCoT Markers for Genetic Diversity Analysis in a Citrus Collection from the Western Caucasus

InDel and SCoT Markers for Genetic Diversity Analysis in a Citrus Collection from the Western Caucasus

Whole-Genome Sequencing and Variant Discovery ofCitrus reticulata‘Kinnow’ from Pakistan

Bergamot Oil: Botany, Production, Pharmacology

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