About: PHYLOGENETIC STUDY OF HEDYOTIS (RUBIACEAE) IN NORTH AMERICA

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About: PHYLOGENETIC STUDY OF HEDYOTIS (RUBIACEAE) IN NORTH AMERICA Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	PHYLOGENETIC STUDY OF HEDYOTIS (RUBIACEAE) IN NORTH AMERICA
Source	PMC
abstract	Lewis, Walter H. (Stephen F. Austin State Coll., Nacogdoches, Texas.) Phylogenetic study of Hedyotis (Rubiaceae) in North America. Amer. Jour. Bot. 49(8): 855–865. Illus. 1962.—Chromosome numbers for 39 taxa of Hedyotis separable into the subgenera Edrisia (Raf.) Lewis and Oldenlandia (L.) T. & G. are reported. The occurrence of basic numbers of x = 6, 7, 8, 9(10), 11, and 13, including infraspecific aneuploidy in H. nigricans (Lam.) Fosb., illustrates the importance of aneuploidy in the speciation of Hedyotis in contrast to most rubiaceous genera. In the North American subg. Edrisia, 25 species are ranked according to primitive and advanced expressions for 13 characters. It is postulated on the basis of these, ecologic, geographic, and chromosomal data that the x = 11 group gave rise to the x = 13 line by the gain of chromosomes and to the x = (10)9, 8, and 7 groups by reduction. Those species with a basic number of 6 are thought to have an Asian origin. Although aneuploidy has been dominant in the evolution of subg. Edrisia, only 12% of the species are polyploids. The development of polyploid races in 3 species, H. caerulea (L.) Hook., H. polypremoides (Gray) Shinners, and H. purpurea (L.) T. & G., however, suggests a greater role of polyploidy in the current evolution of Hedyotis.
has issue date	1962-09-01(xsd:dateTime)
bibo:doi	10.1002/j.1537-2197.1962.tb15020.x
has license	no-cc
sha1sum (hex)	46bdce9d3172b4679e80e4f4837ec2acd6670550
schema:url	https://doi.org/10.1002/j.1537-2197.1962.tb15020.x
resource representing a document's title	PHYLOGENETIC STUDY OF HEDYOTIS (RUBIACEAE) IN NORTH AMERICA
has PubMed Central identifier	PMC7138091
schema:publication	Am J Bot
resource representing a document's body	covid:46bdce9d3172b4679e80e4f4837ec2acd6670550#body_text
is schema:about of	named entity 'Hedyotis' named entity 'chromosomes' named entity 'chromosome number' named entity 'corollas' named entity 'haploid number' named entity 'aneuploid' named entity 'Oldenlandia' named entity 'heterostylous' named entity 'Skottsberg' named entity 'Cretaceous' named entity 'Chromosome' named entity 'meiotic' named entity 'North American' named entity 'corollas' named entity 'seeds' named entity 'Jurassic' named entity 'herbaceous' named entity 'seeds' named entity 'H. crassifolia' named entity 'North America' named entity 'hexaploid' named entity 'morphology' named entity 'glacial acetic acid' named entity 'genus' named entity 'pantropical' named entity 'H. purpurea' named entity 'Oldenlandia' named entity 'camera lucida' named entity 'corollas' named entity 'capsule' named entity 'chromosomes' named entity 'perennial' named entity 'potassium' named entity 'Md.' named entity 'neotropical' named entity 'seeds' named entity 'seeds' named entity 'hexaploid' named entity 'Hedyotis' named entity 'North America' named entity 'morphological' named entity 'chromosome numbers' named entity 'perennial species' named entity 'Baja California' named entity 'native species' named entity 'mesic environments' named entity 'taxa' named entity 'North America' named entity 'aneuploid' named entity 'heterostylous' named entity 'speciation' named entity 'polyploidy' named entity 'chromosomes' named entity 'Rubiaceae' named entity 'diploid' named entity 'heterostylous' named entity 'antibiotic' named entity 'heterostylous' named entity 'Hedyotis' named entity 'chromosomes' named entity 'herbaceous' named entity 'tetraploid' named entity 'temperate' named entity 'fertilization' named entity 'stigmas' named entity 'apical meristems' named entity 'corollas' named entity 'tetraploid' named entity 'Chromosome numbers' named entity 'corollas' named entity 'cymes' named entity 'H. purpurea' named entity 'Chromosome numbers' named entity 'heterostylous' named entity 'neomycin sulfate' named entity 'Aneuploidy' named entity 'herbaria' named entity 'aneuploidy' named entity 'meiosis' named entity 'perennial' named entity 'Beltsville' named entity 'H. purpurea' named entity 'H. purpurea' named entity 'diploid'

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