PHENOTYPIC EFFECTS AND TRANSMISSION RATES OF CUCURBITA PALMATA CHROMOSOMES IN CUCURBITA MOSCHATA ANEUPLOIDS.

Persistent Link:
http://hdl.handle.net/10150/187647
Title:
PHENOTYPIC EFFECTS AND TRANSMISSION RATES OF CUCURBITA PALMATA CHROMOSOMES IN CUCURBITA MOSCHATA ANEUPLOIDS.
Author:
GRAHAM, JOHN DANA.
Issue Date:
1984
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Phenotypic effects and transmission rates of the extra chromosome in interspecific trisomics of Cucurbita moschata cv. Butternut (2n C. moschata + 1 C. palmata chromosome) were compared with those of a primary trisomic of C. moschata. Based on gross morphological similarities, 17 interspecific trisomic lines were placed in six phenotypic groups, suggesting that six different C. palmata chromosomes were recovered. Fruit from one of the interspecific trisomics exhibited the hard rind of C. palmata, indicating that this is a dominant trait carried on one chromosome. Some phenotypic effects of the extra chromosome were similar in both the interspecific and primary trisomics, showing a chromosomal effect due to genic imbalance. Transmission of the extra chromosome through the female ranged from 15% to 32% for the C. palmata chromosomes, and was 44% in the primary trisomic. None of the extra chromosomes were transmitted through the male parent.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Cucurbita moschata -- Cytology.; Cucurbita palmata -- Cytology.; Plant cytotaxonomy.; Translocation (Genetics); Trisomy.; Squashes -- Arizona.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Plant Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Bemis, W. P.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titlePHENOTYPIC EFFECTS AND TRANSMISSION RATES OF CUCURBITA PALMATA CHROMOSOMES IN CUCURBITA MOSCHATA ANEUPLOIDS.en_US
dc.creatorGRAHAM, JOHN DANA.en_US
dc.contributor.authorGRAHAM, JOHN DANA.en_US
dc.date.issued1984en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractPhenotypic effects and transmission rates of the extra chromosome in interspecific trisomics of Cucurbita moschata cv. Butternut (2n C. moschata + 1 C. palmata chromosome) were compared with those of a primary trisomic of C. moschata. Based on gross morphological similarities, 17 interspecific trisomic lines were placed in six phenotypic groups, suggesting that six different C. palmata chromosomes were recovered. Fruit from one of the interspecific trisomics exhibited the hard rind of C. palmata, indicating that this is a dominant trait carried on one chromosome. Some phenotypic effects of the extra chromosome were similar in both the interspecific and primary trisomics, showing a chromosomal effect due to genic imbalance. Transmission of the extra chromosome through the female ranged from 15% to 32% for the C. palmata chromosomes, and was 44% in the primary trisomic. None of the extra chromosomes were transmitted through the male parent.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectCucurbita moschata -- Cytology.en_US
dc.subjectCucurbita palmata -- Cytology.en_US
dc.subjectPlant cytotaxonomy.en_US
dc.subjectTranslocation (Genetics)en_US
dc.subjectTrisomy.en_US
dc.subjectSquashes -- Arizona.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorBemis, W. P.en_US
dc.identifier.proquest8412665en_US
dc.identifier.oclc690920542en_US
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