ArticleGenome biology and evolution2022
Genome Assembly and Evolutionary Analysis of the Mandarin Duck Aix galericulata Reveal Strong Genome Conservation among Ducks.
Article in Genome biology and evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Review
- Hybridisation between different species of waterfowl.Biodiversity data journal · 2026Article
- Sexually dimorphic sail feathers in the Mandarin duck as a model for lifelong developmental modulation.Scientific reports · 2025Article
- A high-quality assembly revealing the PMEL gene for the unique plumage phenotype in Liancheng ducks.GigaScience · 2025Article
- Conserved regulatory switches for the transition from natal down to juvenile feather in birds.Nature communications · 2024Article
- The genome sequence of the red-crested pochard,Wellcome open research · 2024Article
- Genome-wide in silico characterization, validation, and cross-species transferability of microsatellite markers in Mallard and Muscovy ducks.Journal, genetic engineering & biotechnology · 2023Article
- Transition from natal downs to juvenile feathers: conserved regulatory switches in Neoaves.Research square · 2023Article
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Authors and funding
10 authors.
Funding
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Abstract
The mandarin duck, Aix galericulata, is popular in East Asian cultures and displays exaggerated sexual dimorphism, especially in feather traits during breeding seasons. We generated and annotated the first mandarin duck de novo assembly, which was 1.08 Gb in size and encoded 16,615 proteins. Using a phylogenomic approach calibrated with fossils and molecular divergences, we inferred that the last common ancestor of ducks occurred 13.3-26.7 Ma. The majority of the mandarin duck genome repetitive sequences belonged to the chicken repeat 1 (CR1) retroposon CR1-J2_Pass, which underwent a duck lineage-specific burst. Synteny analyses among ducks revealed infrequent chromosomal rearrangements in which breaks were enriched in LINE retrotransposons and DNA transposons. The calculation of the dN/dS ratio revealed that the majority of duck genes were under strong purifying selection. The expanded gene families in the mandarin duck are primarily involved in olfactory perception as well as the development and morphogenesis of feather and branching structures. This new reference genome will improve our understanding of the morphological and physiological characteristics of ducks and provide a valuable resource for functional genomics studies to investigate the feather traits of the mandarin duck.
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