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CHROMOSOMAL REPATTERNING IN CLARKIA RHOMBOIDEA AS EVIDENCE FOR POST‐PLEISTOCENE CHANGES IN DISTRIBUTION

CHROMOSOMAL REPATTERNING IN CLARKIA RHOMBOIDEA AS EVIDENCE FOR POST‐PLEISTOCENE CHANGES IN... CHROMOSOMAL REPATTERNING IN CLARKIA RHOMBOIDEA AS EVIDENCE FOR POST-PLEISTOCENE CHANGES IN DISTRIBUTIONl THEODORE Mosourx Plant Research Institute, Canada Department of Agriculture, Ottawa, Ontario Accepted June 3, 1963 Clarkia rhomboidea Douglas (Onagra­ Arcto-Tertiary and the Madro-Tertiary ceae) is a widely distributed western North Geofloras associated usually with yellow American annual of polyploid origin (Lewis pine (Pinus ponderosa) and various oaks. and Lewis, 1955; Mosquin, 1961). Studies However, from the higher elevations of the of meiotic associations of chromosomes in Sierra Nevada in California to the northern artificial interpopulational hybrids of this limits of the species range, the colonies are species indicate that since its origin a generally found in coniferous or montane considerable amount of chromosomal re­ forest. The wide range of ecological toler­ organization has occurred among natural ance is especially evident on the western populations. The chromosomes have been slopes of the Sierra Nevada of California altered both by reciprocal translocations where populations occur from the mesic and paracentric inversions. The purpose of margins of montane meadows at 10,000 this paper is to examine the evidence for feet elevation to the arid oak woodland and the origin of C. rhomboidea and to deter­ chaparral associations at about 1,800 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Evolution Oxford University Press

CHROMOSOMAL REPATTERNING IN CLARKIA RHOMBOIDEA AS EVIDENCE FOR POST‐PLEISTOCENE CHANGES IN DISTRIBUTION

Mosquin, Theodore
Evolution , Volume 18 (1) – Mar 1, 1964
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References (23)

Publisher
Oxford University Press
Copyright
© Society for the Study of Evolution
ISSN
0014-3820
eISSN
1558-5646
DOI
10.1111/j.1558-5646.1964.tb01564.x
Publisher site
See Article on Publisher Site

Abstract

CHROMOSOMAL REPATTERNING IN CLARKIA RHOMBOIDEA AS EVIDENCE FOR POST-PLEISTOCENE CHANGES IN DISTRIBUTIONl THEODORE Mosourx Plant Research Institute, Canada Department of Agriculture, Ottawa, Ontario Accepted June 3, 1963 Clarkia rhomboidea Douglas (Onagra­ Arcto-Tertiary and the Madro-Tertiary ceae) is a widely distributed western North Geofloras associated usually with yellow American annual of polyploid origin (Lewis pine (Pinus ponderosa) and various oaks. and Lewis, 1955; Mosquin, 1961). Studies However, from the higher elevations of the of meiotic associations of chromosomes in Sierra Nevada in California to the northern artificial interpopulational hybrids of this limits of the species range, the colonies are species indicate that since its origin a generally found in coniferous or montane considerable amount of chromosomal re­ forest. The wide range of ecological toler­ organization has occurred among natural ance is especially evident on the western populations. The chromosomes have been slopes of the Sierra Nevada of California altered both by reciprocal translocations where populations occur from the mesic and paracentric inversions. The purpose of margins of montane meadows at 10,000 this paper is to examine the evidence for feet elevation to the arid oak woodland and the origin of C. rhomboidea and to deter­ chaparral associations at about 1,800

Journal

Evolution – Oxford University Press

Published: Mar 1, 1964

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