Two Loci, RiAF3 and RiAF4, Contribute to the Annual-Fruiting Trait in Rubus
Visualitza/Obre
Autor/a
Jibran, Rubina
Spencer, Jessica
Fernandez, Gina
Mnejja, Mourad
Dzierzon, Helge
Tahir, Jibran
Davies, Kevin
Chagné, David
Foster, Toshi M.
Data de publicació
2019-10-25ISSN
1664-462X
Resum
Most Rubus species have a biennial cycle of flowering and fruiting with an intervening period of winter dormancy, in common with many perennial fruit crops. Annual-fruiting (AF) varieties of raspberry (Rubus idaeus and Rubus occidentalis L.) and blackberry (Rubus subgenus Rubus) are able to flower and fruit in one growing season, without the intervening dormant period normally required in biennial-fruiting (BF) varieties. We used a red raspberry (R. idaeus) population segregating for AF obtained from a cross between NC493 and ‘Chilliwack’ to identify genetic factors controlling AF. Genotyping by sequencing (GBS) was used to generate saturated linkage maps in both parents. Trait mapping in this population indicated that AF is controlled by two newly identified loci (RiAF3 and RiAF4) located on Rubus linkage groups (LGs) 3 and 4. The location of these loci was analyzed using single-nucleotide polymorphism (SNP) markers on independent red raspberry and blackberry populations segregating for the AF trait. This confirmed that AF in Rubus is regulated by loci on LG 3 and 4, in addition to a previously reported locus on LG 7. Comparative RNAseq analysis at the time of floral bud differentiation in an AF and a BF variety revealed candidate genes potentially regulating the trait.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
Anglès
Matèries (CDU)
633 - Cultius i produccions
Pàgines
15
Publicat per
Frontiers Media
Publicat a
Frontiers in Plant Science
Citació
Jibran, Rubina, Jessica Spencer, Gina Fernandez, Amparo Monfort, Mourad Mnejja, Helge Dzierzon, Jibran Tahir, Kevin Davies, David Chagné, and Toshi M. Foster. 2019. "Two Loci, Riaf3 And Riaf4, Contribute To The Annual-Fruiting Trait In Rubus". Frontiers In Plant Science 10. Frontiers Media SA. doi:10.3389/fpls.2019.01341.
Programa
Genòmica i Biotecnologia
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