Transmission of chlorophyll deficiencies in Medicago sativa: Evidence for biparental inheritance of plastids

Steven E Smith, E. T. Bingham, R. W. Fulton

Research output: Contribution to journalArticle

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Abstract

Developmental patterns and transmission of two chlorophyll deficiencies were studied in tetraploid Medicago sativa L (alfalfa). Both chlorophyll deficiencies originally appeared as sectors within otherwise normal (green) tissue. One of the deficiencies arose in tissue culture and had yellow-light green sectors in normal leaves and stems. The other variant was discovered in a breeding population and exhibited albino sectoring in shoot tissues. Neither chlorophyll deficiency was sap-or graft-transmitted, indicating that virus infection was not responsible for the irregularities in coloration. Developmental patterns in sectored plants were characteristic of the sorting-out of normal and abnormal plastids. Significant reciprocal differences in rates of transmission were observed for both traits in crosses of chlorophyll-deficient and normal plants. Transmission of both chlorophyll deficiencies was higher through the pollen than through the egg. All developmental and genetic evidence strongly suggests that both chlorophyll deficiencies represent plastid mutations, and that plastids are inherited biparentally in M. sativa.

Original languageEnglish (US)
Pages (from-to)35-38
Number of pages4
JournalJournal of Heredity
Volume77
Issue number1
StatePublished - Jan 1986

Fingerprint

Plastid
Plastids
Medicago sativa
Chlorophyll
Sector
Tissue
Methyl Green
Tissue Culture
Tissue culture
Pollen
Tetraploidy
Irregularity
Virus Diseases
Viruses
Sorting
Grafts
Virus
Breeding
Ovum
Infection

ASJC Scopus subject areas

  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Genetics(clinical)
  • Biotechnology
  • Molecular Biology
  • Genetics

Cite this

Transmission of chlorophyll deficiencies in Medicago sativa : Evidence for biparental inheritance of plastids. / Smith, Steven E; Bingham, E. T.; Fulton, R. W.

In: Journal of Heredity, Vol. 77, No. 1, 01.1986, p. 35-38.

Research output: Contribution to journalArticle

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