Whole-genome duplication and molecular evolution in Cornus L. (Cornaceae) – Insights from transcriptome sequences

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Whole-genome duplication and molecular evolution in Cornus L. (Cornaceae) – Insights from transcriptome sequences

The pattern and rate of genome evolution have profound consequences in organismal evolution. Whole-genome duplication (WGD), or polyploidy, has been recognized as an important evolutionary mechanism of plant diversification. However, in non-model plants the molecular signals of genome duplications have remained largely unexplored. High-throughput transcriptome data from next-generation sequenci...

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Phylogenetic relationships within Cornus (Cornaceae) based on 26S rDNA sequences.

Phylogenetic relationships within the dogwood genus Cornus have been highly controversial due to the great morphological heterogeneity. Earlier phylogenetic analyses of Cornus using chloroplast DNA (cpDNA) data (including rbcL and matK sequences, as well as restriction sites) and morphological characters suggested incongruent relationships within the genus. The present study generated sequence ...

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Phylogeny-based developmental analyses illuminate evolution of inflorescence architectures in dogwoods (Cornus s. l., Cornaceae).

• Inflorescence architecture is important to angiosperm reproduction, but our knowledge of the developmental basis underlying the evolution of inflorescence architectures is limited. Using a phylogeny-based comparative analysis of developmental pathways, we tested the long-standing hypothesis that umbel evolved from elongated inflorescences by suppression of inflorescence branches, while head e...

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The rainbow trout genome provides novel insights into evolution after whole-genome duplication in vertebrates

Vertebrate evolution has been shaped by several rounds of whole-genome duplications (WGDs) that are often suggested to be associated with adaptive radiations and evolutionary innovations. Due to an additional round of WGD, the rainbow trout genome offers a unique opportunity to investigate the early evolutionary fate of a duplicated vertebrate genome. Here we show that after 100 million years o...

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Heterogeneous evolution of the Myc-like Anthocyanin regulatory gene and its phylogenetic utility in Cornus L. (Cornaceae).

Anthocyanin is a major pigment in vegetative and floral organs of most plants and plays an important role in plant evolution. The anthocyanin regulatory genes are responsible for regulating transcription of genes in the anthocyanin synthetic pathway. To assess evolutionary significance of sequence variation and evaluate the phylogenetic utility of an anthocyanin regulatory gene, we compared nuc...

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ژورنال

عنوان ژورنال: PLOS ONE

سال: 2017

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0171361