Color Inheritance in Geese

Jerome, F. N.

doi:10.1139/g59-020

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…The former explanation is favored since the major color difference between the blue and white phases of A. c. caerulescens results from a single allelic difference. Furthermore, Jerome (1959) showed that white forms in several different breeds of domestic geese differed from the graybrown wild type breeds by single recessive alleles. A recessive mutation, leading to an advantageous genotype could spread within the ancestral gene pool leading to a dimorphic situation.…”

Section: Discussionmentioning

confidence: 99%

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THE GENETICS OF POLYMORPHISM IN THE ROSS' GOOSE (ANSER ROSSII)

Cooke¹,

Ryder²

1971

Evolution

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Section: Discussionmentioning

confidence: 99%

“…Selection could operate upon genes which prevented the expression of the gray phase in the adult without eliminating the original allele. Jerome (1959) describes such a gene in the Emden strain of the domestic goose which is white in the adult but pigmented in the gosling. This is thought to be the present day situation in A. rossii.…”

Section: Discussionmentioning

confidence: 99%

THE GENETICS OF POLYMORPHISM IN THE ROSS' GOOSE (ANSER ROSSII)

Cooke¹,

Ryder²

1971

Evolution

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“…The Pilgrim breed of geese, unlike most other domestic breeds of geese, is sexually dimorphic in plumage colour: females are pale grey, males white. Jerome (1959) has attributed this to a sex-linked dilution gene: Sd or Sd/ + gives pale grey, SdjSd gives white. His results from F x breed crosses give some support to this, but it cannot be regarded as conclusively proved (see Liihmann, 1954).…”

Section: Genetical Evidence In Birds and Lepidopteramentioning

confidence: 99%

Dosage compensation and sex-chromatin in non-mammals

Cock

1964

Genet. Res.

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1. Inactivation of one X chromosome in somatic cells of female mammals is a form of dosage compensation of sex-linked genes, but the mechanism is entirely different from that operating in Drosophila. The latter is designated as dosage compensation sensu strictu.2. There is no dosage compensation of barred, sex-linked dilution or slow-feathering in domestic fowls, of almond or faded in pigeons, or of cinnamon in canaries. Among Lepidoptera the same is true of sex-linked melanism in Lymantria monacha and of a locus controlling haemolymph colour in Choritoneura spp. There is no positive evidence that dosage compensation occurs outside Drosophila and mammals.3. Sex-chromatin in female birds (heterogametic) has been reported by several authors; the genetical evidence is against the possibility that this represents (as in mammals) an inactivated X chromosome. Sex-chromatin in the heterogametic sex also occurs in some (not all) Lepidoptera and Heteroptera; in Heteroptera it usually represents a heteropyknotic Y chromosome.4. Some complications in Muller's theory of dosage compensation sensu strictu are discussed. Not all ‘compensatory modifiers’ are necessarily sex-linked.5. The problem of dosage compensation in species with impaternate males is discussed; fused in Habrobracon is not compensated.

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