On the Inheritance of Apomixis in Parthenium argentatum

@article{Gerstel1950OnTI,
  title={On the Inheritance of Apomixis in Parthenium argentatum},
  author={Dylan Gerstel},
  journal={Botanical Gazette},
  year={1950},
  volume={112},
  pages={96 - 106}
}
  • D. Gerstel
  • Published 1 September 1950
  • Biology
  • Botanical Gazette
1. In feral guayule the diploids (2n = 36) reproduce sexually, but polyploids are facultative apomicts. A fertile polyhaploid with the diploid number of chromosomes but facultatively apomictic in its reproduction was crossed with a diploid. If the polyhaploid was used as a female, the following progeny classes resulted: maternals, diploid F1, triploids, and plants with higher chromosome numbers (doubtful cases). 2. The reciprocal cross, sexual diploid x polyhaploid, produced only diploid F1… 
Apomixis and sexuality in the Potentilla argentea complex II. Crosses within the complex
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An account is given of crosses between taxa within the Potentilla argentea complex, where F1 hybrids from crosses between sexual autotetraploid and hexaploid apomicts showed a varying mode of reproduction.
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Chromosome association in the hybrids indicated that P. confertum parent may be a tetraploid with suppressed multivalent formation.
Cytogenetics and reproductive behavior of induced and natural tetraploid guayule (Parthenium argentatum Gray)
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This review shows how molecular markers and superior phenotypic methods have been used to clarify the genetics of apomixis in monocots as well as dicots during the past 15 years.
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Although TeD1 is poorly fertile, the present results encourage further screening trials for highly fertile, highly amphimictic dihaploids, which may be effective counterparts to KaD2 in diploid-level cross experiments to genetically analyze apomixis in A. tuberosum.
Haploids in flowering plants: origins and exploitation.
  • J. Dunwell
  • Biology, Medicine
    Plant biotechnology journal
  • 2010
TLDR
The range of techniques available for the isolation or induction of haploids are described and their value in a range of areas are discussed, from fundamental research on mutant isolation and transformation, through to applied aspects of quantitative genetics and plant breeding.
Gametophytic apomixis: elements and genetic regulation.
Gametophytic apomixis implies formation of unreduced embryo-sacs and capacity of their egg cells for parthenogenetic development. Each of these processes, as well as their union to give matromorphous
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The present study on megasporogenesis, megagametogenesis, and embryo formation of Parthenium was undertaken in response to the need for reinvestigation of the morphology of reproduction in guayule.
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