Allopolyploidy in bryophytes: Multiple origins of Plagiomnium medium

doi:10.1073/pnas.85.15.5601

. 1988 Aug;85(15):5601-4.

doi: 10.1073/pnas.85.15.5601.

Allopolyploidy in bryophytes: Multiple origins of Plagiomnium medium

R Wyatt¹, I J Odrzykoski, A Stoneburner, H W Bass, G A Galau

Affiliations

PMID: 16593968
PMCID: PMC281807
DOI: 10.1073/pnas.85.15.5601

Allopolyploidy in bryophytes: Multiple origins of Plagiomnium medium

R Wyatt et al. Proc Natl Acad Sci U S A. 1988 Aug.

. 1988 Aug;85(15):5601-4.

doi: 10.1073/pnas.85.15.5601.

Authors

R Wyatt¹, I J Odrzykoski, A Stoneburner, H W Bass, G A Galau

Affiliation

¹ Department of Botany, University of Georgia, Athens, GA 30602.

PMID: 16593968
PMCID: PMC281807
DOI: 10.1073/pnas.85.15.5601

Abstract

Bryophytes are thought to be unique among land plants in lacking the important evolutionary process of allopolyploidy, which involves interspecific hybridization and chromosome doubling. Electrophoretic data show, however, that the polyploid moss Plagiomnium medium is an allopolyploid derivative of Plagiomnium ellipticum and Plagiomnium insigne, that P. medium has originated more than once from these progenitors, and that cross-fertilization results in interlocus genetic recombination. Evidence from restriction fragment length polymorphisms in chloroplast DNA implicates P. insigne as the female parent in interspecific hybridizations with P. ellipticum. Contrary to prevailing views, it appears that those evolutionary processes responsible for genetic differentiation and speciation in other land plants occur in the bryophytes as well.

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[1] Proc Natl Acad Sci U S A. 1986 Jun;83(12):4389-93 - PubMed

[2] Proc Natl Acad Sci U S A. 1986 Jun;83(12):4389-93 - PubMed

[3] Science. 1985 May 10;228(4700):731-3 - PubMed

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Allopolyploidy in bryophytes: Multiple origins of Plagiomnium medium

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Allopolyploidy in bryophytes: Multiple origins of Plagiomnium medium

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