Tracing the ancestry of the favorable (mutant) PG1-6A1 allele found in firm-fruited UC cultivars. (IMAGE)

Nanjing Agricultural University The Academy of Science

Tracing the ancestry of the favorable (mutant) PG1-6A1 allele found in firm-fruited UC cultivars.

Caption

Tracing the ancestry of the favorable (mutant) PG1-6A1 allele found in firm-fruited UC cultivars. The family tree illustrates a small fraction of the thousands of descendants of ‘Tioga’ and ‘Tufts’ in the pedigree records of firm-fruited progeny developed at UC, including every UC cultivar developed since 1970. Genotypes of the AX-184242253 SNP were used to predict PG1-6A1 unfavorable allele homozygotes (−/−; blue points), heterozygotes (+/−; red points), and favorable allele homozygotes (+/+; brown points), where the favorable (mutant) allele (PG1-6A2+⁠) increases fruit firmness. Gray nodes identify individuals that were not genotyped or phenotyped, many of which are extinct.

Credit

Horticulture Research

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