regulates chilling-mediated flowering through expression of hormone genes in a transgenic blueberry mutant.

The molecular mechanism underlying dormancy release and the induction of flowering remains poorly understood in woody plants. Mu-legacy is a valuable blueberry mutant, in which a transgene insertion caused increased expression of a -like gene (). Mu-legacy plants, compared with nontransgenic 'Legacy' plants, show dwarfing, promotion of flower bud formation, and can flower under nonchilling conditions.

Constitutive Expression of an Apple Gene Promotes Flowering in Transgenic Blueberry under Nonchilling Conditions.

MADS-box transcription factors () and ()/ () have an opposite effect in vernalization-regulated flowering in . In woody plants, a functional gene has not been verified through reverse genetics. To reveal chilling-regulated flowering mechanisms in woody fruit crops, we conducted phylogenetic analysis of the annotated proteins of apple and found that these proteins are grouped more closely to than the group.

Haplotype-phased genome and evolution of phytonutrient pathways of tetraploid blueberry.

Background: Highbush blueberry (Vaccinium corymbosum) has long been consumed for its unique flavor and composition of health-promoting phytonutrients. However, breeding efforts to improve fruit quality in blueberry have been greatly hampered by the lack of adequate genomic resources and a limited understanding of the underlying genetics encoding key traits. The genome of highbush blueberry has been particularly challenging to assemble due, in large part, to its polyploid nature and genome size.

Single-molecule sequencing and optical mapping yields an improved genome of woodland strawberry (Fragaria vesca) with chromosome-scale contiguity.

Background: Although draft genomes are available for most agronomically important plant species, the majority are incomplete, highly fragmented, and often riddled with assembly and scaffolding errors. These assembly issues hinder advances in tool development for functional genomics and systems biology.

Findings: Here we utilized a robust, cost-effective approach to produce high-quality reference genomes.