Genetics of fertility restoration in cytoplasmic male sterile Phaseolus vulgaris L. - 1. Cytoplasmic alteration by a nuclear restorer gene

Sally Mackenzie, M. J. Bassett

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Restoration of fertility in cytoplasmic male sterile Phaseolus vulgaris by line R-351 was controlled by a single gene. The restorer gene (Fr) displayed incomplete dominance leading to partial restoration of fertility in F1 generations; full restoration was not achieved until the F2 generation. Once full restoration of fertility was produced in the F2 generation, no segregation for sterility was observed in subsequent generations derived from heterozygotes Frfr, either by testcrossing (restored × maintainer) or in F3 progenies. Implications of the irreversible nature of this restoration are discussed.

Original languageEnglish (US)
Pages (from-to)642-645
Number of pages4
JournalTheoretical And Applied Genetics
Volume74
Issue number5
DOIs
StatePublished - Sep 1 1987

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Phaseolus
Phaseolus vulgaris
Fertility
incomplete dominance
Genes
heterozygosity
genes
Heterozygote
Infertility

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics

Cite this

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AB - Restoration of fertility in cytoplasmic male sterile Phaseolus vulgaris by line R-351 was controlled by a single gene. The restorer gene (Fr) displayed incomplete dominance leading to partial restoration of fertility in F1 generations; full restoration was not achieved until the F2 generation. Once full restoration of fertility was produced in the F2 generation, no segregation for sterility was observed in subsequent generations derived from heterozygotes Frfr, either by testcrossing (restored × maintainer) or in F3 progenies. Implications of the irreversible nature of this restoration are discussed.

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