Interaction of flesh color genes in watermelon

Henderson, W. R.; Scott, G. W.; Wehner, Todd C.

doi:10.1093/jhered/89.1.50

Cited by 49 publications

(50 citation statements)

References 4 publications

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“…This report identified a single dominant gene for canary yellow and a cleaved amplified polymorphic sequence (CAPS) marker was developed based on a single-nucleotide polymorphism (SNP) within the LCYB gene; the resultant CAPS marker has been used to reliably distinguish canary yellow from red flesh in numerous populations (S. King, unpublished data). However, this report did not identify any effect of an i-C gene as reported by Henderson et al (1998), which could be because the parents used in the Bang et al (2007) study differed from those used in Henderson et al (1998).…”

mentioning

confidence: 55%

“…Our previous study using PIs (PI accessions) as parents determined that a single watermelon LCYB gene was the determinant of canary yellow or red flesh color production in the above population (Bang et al, 2007). This was contradictory to the two-gene model proposed by Henderson et al (1998), and could be due to the parental PI accessions, which appear to lack the recessive inhibitory gene i-C. To identify additional genetic determinants of flesh colors, such as i-C, we prepared a new family using 'Yellow Doll' · 'Sweet Princess', which were used to develop the two-gene model where 'Sweet Princess' is homozygous recessive for the i-C alleles.…”

Section: Resultsmentioning

confidence: 87%

“…PLANT MATERIALS. Because 'Sweet Princess' watermelon was previously reported to carry homozygous recessive inhibitory (i-C) alleles (reported genotype: cc YY i-Ci-C) and 'Yellow Doll' watermelon was reported to carry homozygous dominant (I-C) alleles (reported genotype: CC YY I-CI-C) (Henderson et al, 1998), these parents were used as the red and canary yellow-fleshed parents, respectively; F 1 , F 2 , and backcross (BC) populations were generated by controlled pollinations in the greenhouse. F 3 families were also created from selected F 2 plants.…”

Section: Methodsmentioning

confidence: 99%

“…Several researchers have previously reported flesh color inheritance in watermelon (Henderson, 1989;Henderson et al, 1998;Poole, 1944;Porter, 1937;Shimotsuma, 1963), which has resulted in a genetic series summarized in Wehner (2007). In this series, canary yellow (C) is dominant to other colors (c) except white (Wf), which is reported to be epistatic to yellow flesh (B), where genotype Wf_ B_ or Wf_ bb was white fleshed, wfwf B_ was yellow fleshed, and wfwf bb was red fleshed; the gene for coral red flesh (Y) is a member of a multiple allelic system at that locus where coral red flesh (Y) is dominant to orange flesh (y O ) and salmon yellow (y), and orange flesh (y O ) is dominant to salmon yellow (y); canary yellow flesh (C) has also been reported to be epistatic to Y and influenced by a inhibitor of canary yellow (i-C) where homozygous recessive i-C alleles results in red flesh even in the presence of C (Henderson et al, 1998). Despite this reported series of genes, there is still much confusion regarding the genetics of flesh coloration in watermelon.…”

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confidence: 99%

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Flesh Color Inheritance and Gene Interactions among Canary Yellow, Pale Yellow, and Red Watermelon

Bang¹,

Davis²,

Kim³

et al. 2010

J. Amer. Soc. Hort. Sci.

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Two loci, C and i-C, were previously reported to determine flesh colors between canary yellow and red watermelon (Citrullus lanatus). Recently, lycopene β-cyclase (LCYB) was found as a color determinant gene for canary yellow (C) and a codominant cleaved amplified polymorphic sequence (CAPS) marker was developed to identify canary yellow and red alleles. The inhibitor of canary yellow (i-C), as reported in a previous work, was not detected in our original family derived from a cross between canary yellow and red parents. To identify additional genetic determinants such as i-C, we prepared a new family using ‘Yellow Doll’ (canary yellow) and ‘Sweet Princess’ (red), which was reported to carry the inhibitor gene i-C as parents. A new distinct class of flesh color, pale yellow, was identified in the progeny from the new canary yellow × red cross. The predominant carotenoid in canary yellow and pale yellow phenotypes was neoxanthin, followed by violaxanthin and neochrome; pale yellow contained less total carotenoids, but had more minor carotenoids compared with canary yellow. The chi-square goodness-of-fit test indicated that there are two genes involved in determining flesh color among canary yellow, pale yellow, and red, but the segregation pattern did not fit the pattern as reported for an i-C gene. When the genotype of the family ‘Yellow Doll’ × ‘Sweet Princess’ was analyzed with our LCYB CAPS marker, the flesh color of every individual perfectly cosegregated with the marker. The new pale yellow phenotype also cosegregated with the marker linked to the C allele, indicating that the recessive py phenotype (pale yellow) must carry at least one of the C alleles for expression. Therefore, we propose to designate py for a pale yellow determinant along with C as a canary yellow determinant. A homozygous recessive py gene resulted in pale yellow flesh color in the presence of a dominant C.

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mentioning

confidence: 55%

Section: Resultsmentioning

confidence: 87%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Flesh Color Inheritance and Gene Interactions among Canary Yellow, Pale Yellow, and Red Watermelon

Bang¹,

Davis²,

Kim³

et al. 2010

J. Amer. Soc. Hort. Sci.

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show abstract

“…These results were the evidence that cross direction is an important factor for C. lanatus genetic breeding. Variability in quantitative and qualitative character expressions according to cross direction had been already observed in C. lanatus (Henderson et al, 1998;Gusmini et al, 2004).…”

Section: Discussionmentioning

confidence: 74%