The volatiles of two new strawberry cultivars, ?Annelie? and ?Alaska Pioneer?, obtained by backcrossing of cultivated strawberries with wild strawberries, fragaria vesca, r�gen and fragaria virginiana

1982 ◽  
Vol 175 (2) ◽  
pp. 113-116 ◽  
Author(s):  
Timo Hirvi ◽  
Erkki Honkanen
Keyword(s):  
Fragaria Vesca ◽  
Fragaria Virginiana ◽  
Wild Strawberries ◽  
Strawberry Cultivars

Sexual composition of populations of Fragaria virginiana (Rosaceae) collected from Minnesota and western Wisconsin

1995 ◽  
Vol 73 (9) ◽  
pp. 1457-1463 ◽  
Author(s):  
Margaret M. Stahler ◽  
Peter D. Ascher ◽  
James J. Luby ◽  
Alan P. Roelfs
Keyword(s):  
Plant Communities ◽  
Gender Composition ◽  
Fragaria Vesca ◽  
Fragaria Ananassa ◽  
Northern Forest ◽  
Gender Expression ◽  
Sexual Composition ◽  
Consistent Manner ◽  
Fragaria Virginiana ◽  
Collection Sites

Populations of Fragaria virginiana Miller collected from 39 sites in Minnesota and western Wisconsin were gynodioecious, in that 35% of the plants were pistillate, 65% were hermaphroditic with perfect flowers, and none were staminate, when scored for gender expression in greenhouse or field plantings. Instability of gender expression across environments was apparent in 15% of the collections and these genotypes that appeared to change gender were termed weak hermaphrodites. Variation in gender composition of collections was not related in any consistent manner with the plant communities characterizing the collection sites. The proportions of pistillate plants, total hermaphrodites, strong hermaphrodites, and weak hermaphrodites in collections from the northern forest floristic province in the northeastern part of the region were not significantly different from those of collections from the southwestern prairie-forest floristic region, although collections from the prairie-forest province were more variable for gender composition than populations from the northern forest province. Lack of staminate plants and increased percentages of hermaphrodite plants, relative to reports in the literature, suggest that the gender composition of F. virginiana populations in Minnesota has changed, perhaps as a result of introgression from hermaphroditic Fragaria ×ananassa or Fragaria vesca. Key words: Fragaria chiloensis, Fragaria vesca, Fragaria ×ananassa, dioecy, introgression, evolution.

scholarly journals CHROMOSOME NUMBER AND TIME PERIOD OF MITOTIC CYCLE OF FESTIVAL AND CALIFORNICA STRAWBERRY CULTIVARS (Fragaria x ananassa AND Fragaria vesca)

2015 ◽  
Vol 2 (1) ◽  
pp. 476
Author(s):  
Ganies Riza Aristya ◽  
Rezika Alyza ◽  
Rosyidatul Khoiroh ◽  
Budi Setiadi Daryono
Keyword(s):  
Chromosome Number ◽  
Reverse Genetics ◽  
Fragaria X Ananassa ◽  
Fragaria Vesca ◽  
Time Period ◽  
Genomics Research ◽  
Strawberry Cultivar ◽  
Pre Treatment ◽  
Seed Propagation ◽  
Strawberry Cultivars

<p>The cultivated strawberries, Fragaria x ananassa and Fragaria vesca, are the most economically-important softfruit species. F x ananassa and F vesca, both diploid (2n=2x=14) relatives of the commercial octoploid strawberry, are an attractive model for functional genomics research in Rosaceae. Its small genome size, short reproductive cycle, and facile vegetative and seed propagation make F. x annassa and F.vesca a promising candidates for forward and reverse genetics experiments. In order to determine their genetic differences in more detail, chromosome characterization of the two strawberry cultivars was investigated. A method used for chromosome slides in this research was a squash method with modification in pre-treatment. The result showed Fragaria x ananassa had (2n = 4x = 28) chromosome number is 28 and Fragaria vesca had (2n = 2x = 14) chromosome number is 14. The time of mitotic that both strawberry cultivars was similar at 7 to 8.30 am. In addition, mixoploid cells were found in both strawberry cultivar indicating that these cultivars had been treated by mutagenic agents for a breeding program.</p><p><br /><strong>Keywords</strong> : Fragaria, chromosome, mitotic</p>

Gaschromatographisch-massenspektrometrische Differenzierung von Erdbeerarten / Gaschromatographical-masspectrometrical Differentiation of Aroma Substances from Strawberries

1973 ◽  
Vol 28 (9-10) ◽  
pp. 488-493 ◽  
Author(s):  
Friedrich Drawert ◽  
Roland Tressl ◽  
Günter Staudt ◽  
Hans Köppler
Keyword(s):  
Distribution Pattern ◽  
Carboxylic Acids ◽  
Internal Standard ◽  
Secondary Alcohols ◽  
Fragaria Vesca ◽  
Methyl Ketones ◽  
Fragaria Chiloensis ◽  
Fragaria Virginiana ◽  
Main Components ◽  
Aroma Components

Abstract Ripe fruits of wild growing varieties of strawberries had been homogenized under inhibition of the enzymes and extracted with the adding of an internal standard. About 40 main components could be identified and quantitatively determined by gaschromatographical-mass-spectrometrical investigations. Methyl ketones and secondary alcohols dominate in Fragaria moschata and Fragaria vesca, whereas especially ethylesters of the carboxylic acids C6 to C12 are formed by Fragaria chiloensis. Fragaria virginiana contains numerous components amongst which are especially the methyl-and ethylesters of the carboxylic acids C6 to C12; besides it contains, as distinctive marks, n-butyl-, n-hexyl, ra-octyl, and n-decylesters of the carboxylic acids C4 to C10 . All varieties exhibit a sorttypical distribution pattern of the aroma components.

scholarly journals ORIGIN AND CHARACTERISTICS OF THE UNIVERSITY OF CALIFORNIA DAY-NEUTRAL STRAWBERRY CULTIVARS

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 601c-601 ◽  
Author(s):  
Royee S. Bringhurst
Keyword(s):  
Salt Lake ◽  
Salt Lake City ◽  
University Of California ◽  
Backcross Generation ◽  
The Third ◽  
Wasatch Mountains ◽  
Fragaria Virginiana ◽  
Lake City ◽  
The University ◽  
Strawberry Cultivars

Eleven day-neutral strawberry cultivars were released by the University of California between 1979 and 1990. All were derived from a 1955 hybrid between `Shasta' and a staminate Fragaria virginiana glauca clone from the Wasatch Mountains near Salt Lake City, Utah. The first backcrosses to standard cultivars were made in 1958. the second in 1965 and the third in 1969-70. The first three releases came from the third backcross generation in 1979; `Aptos', `Brighton' and `Hecker'. The second group of releases came from the fourth backcross generation: `Fern' and `Selva' (1983); `Muir', `Mrak' and `Yolo' (1987). Of these eight, `Selva' has a proven commercial performance record in California, presently ranking second. The third group of releases all come from the fifth backcross generation: `Irvine' (1988); `Seascape' and `Capitola' (1990). Relative day-neutrality strength and fruiting and vegetative responses to plant conditioning are compared.

scholarly journals Identifying Resistance to Crown Rot Caused by Colletotrichum gloeosporioides in Strawberry

Plant Disease ◽  
2015 ◽  
Vol 99 (7) ◽  
pp. 954-961 ◽  
Author(s):  
Jozer Mangandi ◽  
Natalia A. Peres ◽  
Vance M. Whitaker
Keyword(s):  
Host Resistance ◽  
Colletotrichum Gloeosporioides ◽  
Crown Rot ◽  
University Of Florida ◽  
Fragaria Virginiana ◽  
High Level ◽  
The University ◽  
Strawberry Breeding ◽  
Breeding Selections ◽  
Strawberry Cultivars

Resistance to Colletotrichum crown rot (CCR, caused by Colletotrichum gloeosporioides) among commercial strawberry cultivars is variable, and increasing host resistance is a goal of the strawberry breeding program at the University of Florida. Twenty-eight accessions of Fragaria virginiana and F. chiloensis, the progenitor species of the cultivated strawberry (F. × ananassa), were evaluated for CCR resistance on artificially inoculated plants in a field trial, along with cultivars and breeding selections. Accessions PI 612320, PI 612323, and PI 551736 and selections FL 10-128 and FL 10-129 had no mortality in either of two seasons. The most susceptible genotypes had mortality between 75 and 100%. In a separate growth-chamber evaluation, seven genotypes were inoculated by spraying a spore suspension onto the crown or by injecting the suspension directly into the crown tissues. Mortality was higher using the injection method but the ranking of the genotypes was similar for both methods, indicating that resistance is expressed within crown tissues. Among the seven genotypes, selections FL 10-128 and FL 10-129 had the lowest mortality regardless of inoculation method, illustrating that a high level of resistance can be found within the cultivated germplasm.

scholarly journals Genetic variations of strawberry cultivars of Fragaria x ananassa and Fragaria vesca based on RAPD

2019 ◽  
Vol 20 (3) ◽  
pp. 770-775
Author(s):  
GANIES RIZA ARISTYA ◽  
RINA SRI KASIAMDARI ◽  
RACHMI SETYONINGRUM ◽  
BENING LARASATI
Keyword(s):  
Genetic Variation ◽  
Molecular Markers ◽  
Random Amplified Polymorphic Dna ◽  
Similarity Index ◽  
Dna Amplification ◽  
Genetic Variations ◽  
Fragaria X Ananassa ◽  
Fragaria Vesca ◽  
Market Demand ◽  
Strawberry Cultivars

Abstract. Aristya GR, Kasiamdari RS, Setyoningrum R, Larasati B. 2019. Genetic variations of strawberry cultivars of Fragaria x ananassa and Fragaria vesca based on RAPD. Biodiversitas 20: 770-775. In Indonesia, the increasing market demand for strawberries (Fragaria spp.) is not comparable to increased strawberry productivity. One of the efforts made to increase strawberry productivity with superior quality is plant breeding. The purpose of this research was to determine the genetic variation, lineage, and similarity index in some strawberry cultivars using molecular markers of Random Amplified Polymorphic DNA (RAPD). Eleven strawberry cultivar samples were taken from Indonesian Citrus and Subtropical Fruits Research Institute (Balitjestro), Batu City, East Java, Indonesia and Strawberry Agritourism in Banyuroto Village, Magelang District, Central Java, Indonesia. DNA isolation using modified CTAB buffer method. DNA amplification using PCR-RAPD method with 5 primers, namely UBC-516, UBC-594, OPA 10, OPA 16, and OPG 11. Strawberry lineage dendrogram construction was analyzed with clustering of Unweight Pair-Group Using Arithmetic Average (UPGMA) software Multi-Variate Statistical Average (MVSP). The research results showed that the 5 RAPD primers used in 11 strawberry cultivars produced 30 polymorphic DNA bands and 20 monomorphic DNA bands so it can be concluded that the genetic variation among 11 strawberry cultivars can be detected using RAPD molecular markers. The lineage of 11 strawberry cultivars that have the highest similarity index is found in Earlibrite and Rosalinda II cultivars of 98.85%.

scholarly journals Identification and Expression Analysis of Fragaria Vesca MLO Genes Involved in Interaction with Powdery Mildew (Podosphaera Aphanis)

2017 ◽  
Vol 1 (1) ◽  
pp. 40-54 ◽  
Author(s):  
Shridhar Jambagi ◽  
Shridhar Jambagi ◽  
Jim M. Dunwell ◽  
Jim M. Dunwell
Keyword(s):  
Powdery Mildew ◽  
Powdery Mildew Resistance ◽  
Resistance Locus ◽  
Fragaria Vesca ◽  
Rna Seq ◽  
Mildew Resistance ◽  
Yield And Quality ◽  
Powdery Mildew Infection ◽  
Strawberry Cultivars ◽  
Diploid Strawberry

Strawberry powdery mildew, caused by Podosphaeraaphanis is a major fungal disease that affects strawberry yield and quality. In the model plant species Arabidopsis and the crop plants barley, tomato and pea, the Mildew resistance locus O (MLO) proteins have been found to be required for powdery mildew susceptibility. The present study, based on the sequence of a wild plum (Prunus americana) MLO protein, identified 16 MLO genes within the genome of woodland strawberry, Fragaria vesca and examined their expression pattern in response to powdery mildew infection in three diploid strawberry cultivars. Phylogenetic analysis showed that the FvMLO genes can be classified into six clades. Four FvMLO genes were grouped into clade III, which comprises MLO genes from Arabidopsis, tomato and grapevine that mediate powdery mildew susceptibility. A RNA-seq analysis of two diploid strawberry cultivars, F. vescassp. vesca accession Hawaii 4 (HW) and F. vesca f. semperflorens line “Yellow Wonder 5AF7” (YW) at 1 d (1 DAI) and 8 d (8 DAI) after infection showed the expression of 12 out of the 16 FvMLO genes. The comparison of Fragments Per Kilobase of transcript per Million mapped reads (FPKM values) detected by RNA-seq and expression values of qRT-PCR for FvMLO genes showed substantial agreement. The FvMLO3 gene, which was grouped in clade III and orthologous to the Arabidopsis,tomato and grapevine genes, was highly expressed in YW compared to other FvMLO genes across varieties. The results showed that FvMLO genes can be used as potential candidates to engineer powdery mildew resistance in strawberry based on MLO suppression or genome editing.

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