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AQUAPEDIA / SOURCE-LINKED RESEARCH

Frost (White Diamond × Emekin selection)

フロスト

Source-documented ornamental Medaka selectionEvidence by claimIndependent review ongoing

Dense white body pigmentation, white fin network pattern and blue fin lighting.

Picture gene & lineage tree

Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.

Horizontal branching Medaka lineage. American name: Frost (White Diamond × Emekin selection); Japanese romaji: not verified; Japanese characters: フロスト. Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Documented source links and evidence qualifiers follow the diagram.AQUAPEDIA / MEDAKA LINEAGE ATLASSTRAIN PEDIGREEREPORTED LINEAGEDASHED BRANCHES • REPORTED INPUTS / SELECTION STAGESNot an individual-fish pedigree or DNA / dominance test.REPORTED INPUT / STAGE 1White Diamond × Emekin original stockREPORTED INPUT / STAGE 2White Diamond backcross, then EmekinreintroductionFOCAL STRAINAMERICAN / ENGLISH NAMEFrost (White Diamond ×Emekin selection)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)フロスト
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Published multi-generation STOCK/selection history only; not proof of a single parental pair, inheritable genotype or current fish pedigree. Source: Medaka WEB Zukan / Medaka no Yakata breeder selection account

Browse the larger Medaka lineage atlas ↗

Overview

Documented stages: White Diamond × Emekin; F1 backcross to White Diamond; further selection through F4; reintroduction of Emekin; three more generations. This profile preserves the claimed history, not a DNA-verified pedigree.

Claim-by-claim evidence

Research findingEvidence classDirect references
Frost (White Diamond × Emekin selection) (フロスト): Dense white body pigmentation, white fin network pattern and blue fin lighting.Specialist/breeder-described phenotype; no genetic assayB15F ↗
Documented stages: White Diamond × Emekin; F1 backcross to White Diamond; further selection through F4; reintroduction of Emekin; three more generations.Documented breeder- or breeder-supplied breeding-stock historyB15F ↗
Creator / originator attribution: Medaka no Yakata breeding account; individual developer not independently established.Source-specific attribution; not proof of modern stock authenticityB15F ↗
Sequential breeding history must not be flattened into a single simultaneous multi-parent mating; breeder reports about-80-percent fixation.Evidence limit / anti-conflation noteB15F ↗

Evidence labels refer to documentary strength. They do not assert independently tested genetics.

Known research gaps

  • Individual sire and dam identification, founder fish registers and genotype tests have not been examined.
  • Phenotype-specific fixation figures from source breeding stock cannot be generalized to retail animals.
  • The cited Japanese source owns or credits its own photographs; none are republished here without written rights.
  • No strain-specific disease resistance, water parameter requirement or feeding protocol is demonstrated; use the separately sourced Medakapedia general-care guides.

Related profiles and lineages

Original research sources

Every row above links directly to its cited reference; publication or creation years are not interchangeable.