Evolutionary analysis of Pinus densata Masters, a putative Tertiary hybrid - 1. Allozyme variation

X. R. Wang, Alfred Szmidt, A. Lewandowski, Z. R. Wang

Research output: Contribution to journalArticle

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Abstract

Allozyme differentiation at 13 loci was studied in populations of Pinus tabulaeformis, P. densata, and P. yunnanensis from China. It was previously suggested that P. densata represents a Tertiary hybrid between P. tabulaeformis and P. yunnanensis. The observed levels of allozyme variation within and among the investigated species were comparable to those of other conifers. P. tabulaeformis differed markedly from P. yunnanensis with respect to allozyme frequencies, while P. densata was intermediate between the two putative parents. There was evidence of homozygote excess in embryos from all investigated species, as compared to Hardy-Weinberg expectations. The observed allozyme composition of P. densata conformed to earlier morphological and molecular evidence indicating hybrid origin of this taxon. It was proposed that fusion of gene pools from P. tabulaeformis and P. yunnanensis has led to adaptive evolution of a new species, P. densata.

Original languageEnglish
Pages (from-to)635-640
Number of pages6
JournalTheoretical and Applied Genetics
Volume80
Issue number5
DOIs
Publication statusPublished - Jan 1 1990

Fingerprint

Pinus
Pinus tabuliformis
allozymes
Isoenzymes
Coniferophyta
Gene Pool
Pinus yunnanensis
Homozygote
China
homozygosity
Embryonic Structures
conifers
Pinus densata
loci
new species
Population

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics

Cite this

Evolutionary analysis of Pinus densata Masters, a putative Tertiary hybrid - 1. Allozyme variation. / Wang, X. R.; Szmidt, Alfred; Lewandowski, A.; Wang, Z. R.

In: Theoretical and Applied Genetics, Vol. 80, No. 5, 01.01.1990, p. 635-640.

Research output: Contribution to journalArticle

Wang, X. R. ; Szmidt, Alfred ; Lewandowski, A. ; Wang, Z. R. / Evolutionary analysis of Pinus densata Masters, a putative Tertiary hybrid - 1. Allozyme variation. In: Theoretical and Applied Genetics. 1990 ; Vol. 80, No. 5. pp. 635-640.
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