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Neocaridina maternal red grade versus hatchling traits

Neocaridina davidi · Controlled paired-female observation

Species, evidence class and date

Neocaridina davidi · Controlled paired-female observation · 2019

Females spanning weak-to-strong red coloration paired to transparent males, first two spawning events assessed then Maternal weight, not red intensity, correlated with number of hatchlings; maternal and offspring color did not correlate at same measured age then Two broods/female assessed; accessible abstract does not report a complete color-line F1/F2 phenotype denominatorSOURCE / PARENT DESIGNFemales spanning weak-to-strongred coloration paired totransparent males, first twospawning events assessedRECORDED INTERMEDIATEMaternal weight, not red intensity,correlated with number ofhatchlings; maternal and offspringcolor did not correlate at samemeasured ageRESULT / CLAIMTwo broods/female assessed;accessible abstract does notreport a complete color-line F1/F2phenotype denominator
Solid = source-described measurement or study design. Evidence flow; not a color-strain genotype tree.

Parents or study design

Females spanning weak-to-strong red coloration paired to transparent males, first two spawning events assessed

Recorded results

Maternal weight, not red intensity, correlated with number of hatchlings; maternal and offspring color did not correlate at same measured age

Numerical counts and denominator

Two broods/female assessed; accessible abstract does not report a complete color-line F1/F2 phenotype denominator

Claims requiring caution

None

Important limitations

Red intensity changes with female age. This does NOT mean pigment heritability is zero, nor does it support commercial color Mendelian models.

Claim-level source ledger