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SHRIMPAPEDIA / FAMILY DATA AND PIGMENT RESEARCH

Gene Tree 5.0 — observed families versus color-gene hypotheses

A picture-style visual pedigree/evidence tree with solid experimental links and dashed unverified breeder lineages.

Picture gene / pedigree evidence tree

Each connecting line reflects the reported design or evidence status; there is no invented ancestor. Three rows distinguish original genetic parentage, known-family research and uncounted color-line claims.

A / Genotyped family parentage; measured experimental cohorts remain separate from unverified color reports.SOURCE / STUDY20 wild C. ensifera broodsMETHOD / SELECTIONFour microsatellite lociOUTCOME20/20 multiple sires
A / Genotyped family parentage: experimental counts or methods as reported by the cited study These records do not establish a commercial color locus.
B / Controlled family group production; measured experimental cohorts remain separate from unverified color reports.SOURCE / STUDY41 N. davidi groupsMETHOD / SELECTION75 full-sib familiesOUTCOME1,191 behavior cohort
B / Controlled family group production: experimental counts or methods as reported by the cited study These records do not establish a commercial color locus.
C / Reported ornamental color lineage; measured experimental cohorts remain separate from unverified color reports.SOURCE / STUDYBlue Jelly + Orange SakuraMETHOD / SELECTIONRili F1 reportedOUTCOMEOrange Rili F2 ~25% claim
C / Reported ornamental color lineage: unverified report; no F2 denominator These records do not establish a commercial color locus.

Paternity versus phenotype inheritance

The 2010 Caridina ensifera microsatellite finding of 20/20 multiple-sire broods is a real parentage result for a wild Sulawesi shrimp, NOT evidence for Taiwan Bee or Boa crosses.

Known-generation Neocaridina

A 2026 Neocaridina davidi breeding cohort contained 1191 offspring from 75 full-sibling families and 37 paternal half-sibling families. These data evaluated boldness and predator-water behavior; F2 shrimp were removed rather than included as color-ratio samples.

Expert but uncounted commercial cross

Ulli Bauer and Sarah Lang's 2019 account proposes a roughly 25% Orange Rili F2 when Blue Jelly and Orange Sakura lineages are crossed, but gives no brood-level observed denominator. Dashed arrows convey the unverified phenotype ratio, not a gene model.

Molecular pigment pathway

The 2026 Neocaridina denticulata genome-expression article investigates BCO-like carotenoid, GCH1/PTPS pteridine, TH melanin and CRCN pigment transport pathways. Expression is not a Mendelian dominance test for a named Neocaridina davidi color variety.

Primary and source-reported references