Genetic variability within and between apomictic Guayule (Parthenium argentatum Gray) lines

Persistent Link:
http://hdl.handle.net/10150/278439
Title:
Genetic variability within and between apomictic Guayule (Parthenium argentatum Gray) lines
Author:
Diallo, Mamadou MBaye, 1962-
Issue Date:
1994
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:
Guayule (Parthenium argentatum Gray), a semidesert shrub was evaluated as a potential rubber crop. Since polyploid guayule reproduces by apomixis, progeny of individual plants should duplicate the characteristics of their parent. This study was conducted to estimate variations within and among progeny families from single-plant selections. Ten progeny per family were individually evaluated for plant height, width, fresh and dry weight of clipped branches, rubber and resin content, and yield. Leaves of selected plants were analyzed by gradient polyacrylamide gel electrophoresis for esterase and peroxidase to estimate genetic relatedness between parents and progenies. Negative correlation was between parents and progenies for most characters, but none were statistically significant from zero. This suggests a low heritability for the characters measured. Esterase and peroxidase detected variation in banding between parents and progenies and among progenies. This study suggested that out-crossing and meiotic reduction have occurred among apomictic guayule lines.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Agriculture, Agronomy.; Biology, Genetics.; Agriculture, Plant Culture.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Plant sciences
Degree Grantor:
University of Arizona
Advisor:
Ray, Dennis T.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleGenetic variability within and between apomictic Guayule (Parthenium argentatum Gray) linesen_US
dc.creatorDiallo, Mamadou MBaye, 1962-en_US
dc.contributor.authorDiallo, Mamadou MBaye, 1962-en_US
dc.date.issued1994en_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.abstractGuayule (Parthenium argentatum Gray), a semidesert shrub was evaluated as a potential rubber crop. Since polyploid guayule reproduces by apomixis, progeny of individual plants should duplicate the characteristics of their parent. This study was conducted to estimate variations within and among progeny families from single-plant selections. Ten progeny per family were individually evaluated for plant height, width, fresh and dry weight of clipped branches, rubber and resin content, and yield. Leaves of selected plants were analyzed by gradient polyacrylamide gel electrophoresis for esterase and peroxidase to estimate genetic relatedness between parents and progenies. Negative correlation was between parents and progenies for most characters, but none were statistically significant from zero. This suggests a low heritability for the characters measured. Esterase and peroxidase detected variation in banding between parents and progenies and among progenies. This study suggested that out-crossing and meiotic reduction have occurred among apomictic guayule lines.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectAgriculture, Agronomy.en_US
dc.subjectBiology, Genetics.en_US
dc.subjectAgriculture, Plant Culture.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRay, Dennis T.en_US
dc.identifier.proquest1358521en_US
dc.identifier.bibrecord.b32075686en_US
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