“Tokun” : A new decaploid interspecific hybrid strawberry having the aroma of the wild strawberry

裕司, 野口

doi:10.2171/jao.42.122

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…chiloensis in Europe during the early to mid-1700s, and systematic breeding using a small number of native and cultivated clones began in England and North America in the 1800s ( Darrow, 1966 ). Wild strawberries have recently been employed to increase genetic diversity ( Noguchi, 2011 ), though most modern strawberry cultivars are the progeny of F . × ananassa germplasm ( Honjo et al, 2009 ; Hancock, 2008 ; Luby et al, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

The complete chloroplast genome sequence of strawberry (Fragaria × ananassaDuch.) and comparison with related species of Rosaceae

Cheng

Li²,

Cai

et al. 2017

PeerJ

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Compared with other members of the family Rosaceae, the chloroplast genomes of Fragaria species exhibit low variation, and this situation has limited phylogenetic analyses; thus, complete chloroplast genome sequencing of Fragaria species is needed. In this study, we sequenced the complete chloroplast genome of F. × ananassa ‘Benihoppe’ using the Illumina HiSeq 2500-PE150 platform and then performed a combination of de novo assembly and reference-guided mapping of contigs to generate complete chloroplast genome sequences. The chloroplast genome exhibits a typical quadripartite structure with a pair of inverted repeats (IRs, 25,936 bp) separated by large (LSC, 85,531 bp) and small (SSC, 18,146 bp) single-copy (SC) regions. The length of the F. × ananassa ‘Benihoppe’ chloroplast genome is 155,549 bp, representing the smallest Fragaria chloroplast genome observed to date. The genome encodes 112 unique genes, comprising 78 protein-coding genes, 30 tRNA genes and four rRNA genes. Comparative analysis of the overall nucleotide sequence identity among ten complete chloroplast genomes confirmed that for both coding and non-coding regions in Rosaceae, SC regions exhibit higher sequence variation than IRs. The Ka/Ks ratio of most genes was less than 1, suggesting that most genes are under purifying selection. Moreover, the mVISTA results also showed a high degree of conservation in genome structure, gene order and gene content in Fragaria, particularly among three octoploid strawberries which were F. × ananassa ‘Benihoppe’, F. chiloensis (GP33) and F. virginiana (O477). However, when the sequences of the coding and non-coding regions of F. × ananassa ‘Benihoppe’ were compared in detail with those of F. chiloensis (GP33) and F. virginiana (O477), a number of SNPs and InDels were revealed by MEGA 7. Six non-coding regions (trnK-matK, trnS-trnG, atpF-atpH, trnC-petN, trnT-psbD and trnP-psaJ) with a percentage of variable sites greater than 1% and no less than five parsimony-informative sites were identified and may be useful for phylogenetic analysis of the genus Fragaria.

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Section: Introductionmentioning

confidence: 99%

The complete chloroplast genome sequence of strawberry (Fragaria × ananassaDuch.) and comparison with related species of Rosaceae

Cheng

Li²,

Cai

et al. 2017

PeerJ

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“…and hybridized it with octoploid cultivated strawberry (Fragaria ×ananassa Duch.) to create 'Tokun' (Noguchi 2011;Ruan et al 2020). This process involved initially obtaining pentaploid interspecific hybrids, then using colchicine to double the chromosome sets, which resulted in decaploid materials that were subsequently and continuously improved and bred selectively over a couple of years to obtain the Tokun cultivar.…”

Section: Discussionmentioning

confidence: 99%

New Germplasm for Breeding: Pink-flowered and White-fruited Strawberry

Guan

Wilson

Zhao

et al. 2023

horts

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Most strawberry plants have white flowers and red fruit. We developed a new strawberry selection with pink flowers and white fruit, and named it G23. Basic phenotypic data were recorded over years of observation and experimentation with the flower crown diameter, petal color, and rate of fruit set, as well as fruit skin color, flesh color, seed color and attachment status, fruit weight and shape, soluble solids contents, and firmness. We found that G23 bloomed with a stable pink flower and produced white fruit consistently with a relatively high fruit-set rate compared with its female parent, ‘Pink Panda’. G23 displayed high resistance to Fusarium wilt (Fusarium oxysporum) and anthracnose (Colletotrichum spp.). It is also tolerant of high temperatures (up to 40 °C) and long-term drought. The asexual propagation ability of G23 is high, with ∼60 to 100 stolon ramets formed during the summer. In summary, this new pink-flowered and white-fruited strawberry germplasm is suitable for ornamental use, as a result of its remarkable flowering and fruiting characteristics. In addition, it provides opportunities for innovative strawberry germplasm for future breeding.

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“…F. nilgerrensis is a suitable donor for improving the flavor-related qualities of cultivated strawberry varieties through breeding [ 23 ]. For example, Noguchi used F. nilgerrensis and F. × ananassa to obtain an interspecific decaploid hybrid (‘Tokun’) that produces fruits with a unique blend of peach-like and coconut-like aromas [ 24 ]. However, little is known about the composition of the aromatic compounds that provide F. nilgerrensis fruits with their characteristic peach-like aroma.…”

Section: Discussionmentioning

confidence: 99%

Transcriptomic and Metabolomic Analyses Provide Insights into the Formation of the Peach-like Aroma of Fragaria nilgerrensis Schlecht. Fruits

Wang

Zhang

et al. 2022

Genes

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Fragaria nilgerrensis Schlecht. is a wild diploid strawberry species. The intense peach-like aroma of its fruits makes F. nilgerrensis an excellent resource for strawberry breeding programs aimed at enhancing flavors. However, the formation of the peach-like aroma of strawberry fruits has not been comprehensively characterized. In this study, fruit metabolome and transcriptome datasets for F. nilgerrensis (HA; peach-like aroma) and its interspecific hybrids PA (peach-like aroma) and NA (no peach-like aroma; control) were compared. In total, 150 differentially accumulated metabolites were detected. The K-means analysis revealed that esters/lactones, including acetic acid, octyl ester, δ-octalactone, and δ-decalactone, were more abundant in HA and PA than in NA. These metabolites may be important for the formation of the peach-like aroma of F. nilgerrensis fruits. The significantly enriched gene ontology terms assigned to the differentially expressed genes (DEGs) were fatty acid metabolic process and fatty acid biosynthetic process. Twenty-seven DEGs were predicted to be associated with ester and lactone biosynthesis, including AAT, LOX, AOS, FAD, AIM1, EH, FAH, ADH, and cytochrome P450 subfamily genes. Thirty-five transcription factor genes were predicted to be associated with aroma formation, including bHLH, MYB, bZIP, NAC, AP2, GATA, and TCPfamily members. Moreover, we identified differentially expressed FAD, AOS, and cytochrome P450 family genes and NAC, MYB, and AP2 transcription factor genes that were correlated with δ-octalactone and δ-decalactone. These findings provide key insights into the formation of the peach-like aroma of F. nilgerrensis fruits, with implications for the increased use of wild strawberry resources.

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“Tokun” : A new decaploid interspecific hybrid strawberry having the aroma of the wild strawberry

Abstract: Tokun" : A new decaploid interspecific hybrid strawberry having the aroma of the wild strawberry ., , ,-

Cited by 9 publications

References 5 publications

The complete chloroplast genome sequence of strawberry (Fragaria × ananassaDuch.) and comparison with related species of Rosaceae

The complete chloroplast genome sequence of strawberry (Fragaria × ananassaDuch.) and comparison with related species of Rosaceae

New Germplasm for Breeding: Pink-flowered and White-fruited Strawberry

Transcriptomic and Metabolomic Analyses Provide Insights into the Formation of the Peach-like Aroma of Fragaria nilgerrensis Schlecht. Fruits

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