Genetics of cytosolic phosphoglucose isomerase (PGI) variation in the Amazonian tree Pseudobombax munguba (Bombacaceae)

R Gribel, Richard John Abbott

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A genetic analysis of cytosolic phosphoglucose isomerase (PGI) variation in the tropical tree Pseudobombax munguba (Bombacaceae) was carried out in one population from Central Amazon. It was shown that cytosolic PGI variation is controlled by two diallelic loci (Pgi-2 and Pgi-3). All nine possible enzyme phenotypes produced bl, allelic variation at these two loci were easily identified on gels stained for PGI. Progeny analysis from cross-pollinated families revealed that the two loci assorted independently and exhibited disomic inheritance, suggesting that allopolyploidy may have been the cause of the duplication of the cytosolic PGI gene in this species.

Original languageEnglish
Pages (from-to)531-538.
Number of pages8
JournalHeredity
Volume76
Publication statusPublished - May 1996

Keywords

  • Bombacaceae
  • gene duplication
  • isozymes
  • PGI
  • Pseudobombax
  • tropical trees
  • MATING SYSTEM
  • POLYPLOID COMPLEX
  • STRUCTURAL GENE
  • ISOZYME GENES
  • DUPLICATION
  • CLARKIA
  • LINKAGE
  • ENZYMES
  • PINE
  • SEGREGATION

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