A preliminary note on the Genetics of Fragaria

Richardson, C. W.

doi:10.1007/bf01703052

Cited by 7 publications

(9 citation statements)

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“…In addition to the FaPFRU locus that originated from the F. virginiana species (Bringhurst and Voth, ; Powers, ), two other origins of PF trait in the cultivated strawberry have been reported (Darrow, ). The cultivar ‘Pan American’ released in the USA in 1902 is believed to be a mutant of the Bismarck cultivar, whereas Gloede's seedling was first identified in France (Richardson, ). Thus, there is still a doubt regarding the origin of the PF trait in modern cultivated cultivars.…”

Section: Discussionmentioning

confidence: 99%

Narrowing down the single homoeologous FaPFRU locus controlling flowering in cultivated octoploid strawberry using a selective mapping strategy

Perrotte

Gaston

Potier

et al. 2016

Plant Biotechnology Journal

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SummaryExtending the period of fruit production is a way to substantially increase crop yield in many fruit or ornamental species. In the cultivated octoploid strawberry (Fragaria × ananassa), the most consumed small fruit worldwide, fruit production season can be extended by selecting the perpetual flowering (PF) cultivars. This trait is of considerable interest to growers and to the food industry. Four homoeologous loci controlling a single trait can be expected in such a complex octoploid species. However, we recently showed that the PF trait is under the control of the single dominant FaPFRU locus (J. Exp. Bot., 2013, 64, 1837), making it potentially amenable to marker‐assisted selection (MAS). Here, we report the successful use of a strategy, based on a selective mapping using a reduced sample of individuals, to identify nine markers in close linkage to the FaPFRU allelic variant. Thus, this strategy can be used to fine map the target homoeologous loci in other complex polyploid crop species. Recombinant analysis further enabled us to reduce the locus to a region flanked by two markers, Bx083_206 and Bx215_131, corresponding to a 1.1 Mb region in the diploid F. vesca reference genome. This region comprises 234 genes, including 15 flowering associated genes. Among these, the FLOWERING LOCUS T (FT) is known to be a key activator of flowering. The close association between the PF trait and the FaPFRU flanking markers was validated using an additional segregating population and genetic resources. This study lays the foundation for effective and rapid breeding of PF strawberry cultivars by MAS.

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Section: Discussionmentioning

confidence: 99%

Narrowing down the single homoeologous FaPFRU locus controlling flowering in cultivated octoploid strawberry using a selective mapping strategy

Perrotte

Gaston

Potier

et al. 2016

Plant Biotechnology Journal

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“…In all cases the l2x offspring were absolutely sterile, producing inviable pollen and seeds, behaving as functional triploids (unpublished data). Richardson (1914) was first to attempt to investigate the Mendelian nature of the genes conferring sexual expression in F. moschata and F. x ananassa. The European investigators followed him and devoted most of their attention to the nature of trioecy in the European species of Fragaria.…”

Section: Discussionmentioning

confidence: 99%

“…Correns (1928) was the first to conclude that females are heterogametic in polyploid Fragaria species. He based his conclusion on his own experiment with male and female F. moschata and on a 1915 interpretation of Richardson's (1914) sex data on F. X ananassa and F. moschata by Morgan, Bridges, and Sturtevent. Valleau (1923), Mangelsdorf and East (1927), Kihara (1930), Kuhn (1930), Lilienfeld (1933), Schiemann (1931Schiemann ( , 1937Schiemann ( , 1943, and Hancock and Bringhurst (1979) elaborated further, but still left the inheritance of sexuality in polyploid Fragaria species far from clear and adequate resolution.…”

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confidence: 99%

Genetics of Sex Expression in Fragaria Species

Ahmadi

Bringhurst

1991

American Journal of Botany

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“…Fragaria vesca was used in some of the earliest plant genetic studies following the rediscovery of Mendel's laws. Richardson (1914) cited Duchesne's (1766) observations of “ F. monophylla ” and reported Mendelian segregation of these leaf traits (as well as red vs. white fruit color and stolon presence/absence) in F . vesca .…”

Section: Historical Backgroundmentioning

confidence: 99%

Fragaria: A genus with deep historical roots and ripe for evolutionary and ecological insights

Liston

Cronn

Ashman

2014

American J of Botany

149

138

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The cultivated strawberry, Fragaria ×ananassa, is one of the youngest domesticated plants. Its 18th century origin via hybridization in Europe between the North American F. virginiana and the South American F. chiloensis was documented by the botanist Antoine Nicolas Duchesne. His 1766 "Natural History of Strawberries" is an extraordinary work that integrates fundamental discoveries on the biology, ecology, and phylogeny of Fragaria with applied information on cultivation and ethnobotanical uses, serving as an inspiration for current research in the genus. Fragaria species exhibit the full range of sexual systems in the gynodioecy pathway from hermaphroditism to dioecy (and back again), as well as variation in self-compatibility, and evidence of sex chromosomes with female heterogamety. The genus is also characterized by interspecific hybridization and polyploidy, with a natural range of ploidy levels from diploids to decaploids. This biological diversity, combined with the availability of genomic resources and the ease of growing and experimenting with the plants, makes Fragaria a very attractive system for ecological and evolutionary genomics. The goal of this review is to introduce Fragaria as a model genus and to provide a roadmap for future integrative research. These research directions will deepen our understanding of the ecological and evolutionary context that shaped the ancestors of the cultivated strawberry, not only providing information that can be applied to efforts to shape the future of this important fruit crop but also our understanding of key transitions in plant evolution.

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A preliminary note on the Genetics of Fragaria

Cited by 7 publications

References 0 publications

Narrowing down the single homoeologous FaPFRU locus controlling flowering in cultivated octoploid strawberry using a selective mapping strategy

Narrowing down the single homoeologous FaPFRU locus controlling flowering in cultivated octoploid strawberry using a selective mapping strategy

Genetics of Sex Expression in Fragaria Species

Fragaria: A genus with deep historical roots and ripe for evolutionary and ecological insights

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