scholarly journals Characterization of North American Armillaria Species by Nuclear DNA Content and RFLP Analysis

Mycologia ◽  
2000 ◽  
Vol 92 (5) ◽  
pp. 874 ◽  
Author(s):  
Mee-Sook Kim ◽  
Ned B. Klopfenstein ◽  
Geral I. McDonald ◽  
Kathiravetpillai Arumuganathan ◽  
Anne K. Vidaver
Keyword(s):  
North American ◽  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Rflp Analysis ◽  
Armillaria Species

scholarly journals Characterization of North American Armillaria species by nuclear DNA content and RFLP analysis

Mycologia ◽  
2000 ◽  
Vol 92 (5) ◽  
pp. 874-883 ◽  
Author(s):  
Mee-Sook Kim ◽  
Ned B. Klopfenstein ◽  
Geral I. McDonald ◽  
Kathiravetpillai Arumuganathan ◽  
Anne K. Vidaver
Keyword(s):  
North American ◽  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Rflp Analysis ◽  
Armillaria Species

scholarly journals Morphological and Cytological Characterization of Five Porterweed (Stachytarpheta) Selections

HortScience ◽  
2021 ◽  
pp. 1-6
Author(s):  
Renjuan Qian ◽  
S. Brooks Parrish ◽  
Sandra B. Wilson ◽  
Gary W. Knox ◽  
Zhanao Deng
Keyword(s):  
Chromosome Number ◽  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Basic Chromosome Number ◽  
Pollen Stainability ◽  
Flower Number ◽  
Ploidy Levels ◽  
Basic Chromosome

Porterweed (Stachytarpheta spp.), a member of the verbena family, is frequently used in pollinator gardens to attract butterflies. This study was conducted to assess the morphological features, pollen stainability and morphology, nuclear DNA content, and chromosome number of five porterweed selections. Coral porterweed (S. mutabilis), ‘Naples Lilac’ porterweed (S. cayennensis × S. mutabilis ‘Violacea’), and nettleleaf porterweed (S. cayennensis) had the largest plant heights. Flower number was significantly higher in nettleleaf porterweed, jamaican porterweed (S. jamaicensis), and U*J3-2 porterweed (S. cayennensis × S. jamaicensis), with an average of 65–72 flowers per inflorescence. Internode length and flower width of jamaican porterweed had much lower values than the other selections. Coral porterweed recorded the lowest pollen stainability with only 10.6% stainability, but it had the largest relative pollen production. ‘Naples Lilac’ porterweed had the highest DNA content with an average of 3.79 pg/2C, like jamaican porterweed with 3.73 pg/2C. Ploidy levels varied between selections, and the basic chromosome number was x = 28. Coral, jamaican, and ‘Naples Lilac’ porterweed had 2n = 6x = 168 chromosomes, first reported in this genus. These results provide a guide and a new tool to distinguish native and non-native porterweed and may aid future breeding toward the production of noninvasive cultivars.

scholarly journals Cytogenetic and Nuclear DNA Content Characterization of Diploid Bromus erectus and Bromus variegatus

Crop Science ◽  
2006 ◽  
Vol 46 (2) ◽  
pp. 637-641 ◽  
Author(s):  
Metin Tuna ◽  
Kenneth P. Vogel ◽  
K. Arumuganathan
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Bromus Erectus

scholarly journals Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?

2005 ◽  
Vol 3 (2) ◽  
pp. 277-284 ◽  
Author(s):  
Rodrigo Augusto Torres ◽  
James Joseph Roper ◽  
Fausto Foresti ◽  
Claudio Oliveira
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Genomic Diversity ◽  
Complex Relationship ◽  
Neotropical Fish ◽  
Content Variation ◽  
Dna Content Variation ◽  
Evolutionary Lineages

Chromosomes and nuclear DNA content variation in the eel Synbranchus marmoratus were studied in seven samples taken from rio Paraguay and rio Paraná basins to examine whether karyotype and nuclear DNA content variations could offer useful information for the characterization of independent evolutionary lineages in the genus and construction of evolutionary and biogeographical hypotheses. The occurrence of different karyotypes was already described for this species; however, a new cytotype from rio Miranda was discovered. Nuclear DNA content showed a wide variation among samples and individuals, ranging from 5.2 to 9.1 pg of DNA/nuclei. An analysis of variance confirmed the occurrence of significant differences among samples. In a deeper series of analyses, a multimodality was found in the distribution of nuclear DNA content, in which several, more or less discrete units arose. Finally, combining karyotype formulae with nuclear DNA content, a complex relationship among the rivers sampled was found. Based on the available data, we suggest that several independent evolutionary lineages of Synbranchus marmoratus occur in the rivers sampled. Biogeographical hypotheses are proposed and discussed.

Prognostic value of nuclear DNA content in papillary and follicular thyroid cancer

1988 ◽  
Vol 12 (4) ◽  
pp. 503-507 ◽  
Author(s):  
Jaap F. Hamming ◽  
Lodewijk J. D. M. Schelfhout ◽  
Cees J. Cornelisse ◽  
Cornelis J. H. van de Velde ◽  
Bernard M. Goslings ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Dna Content ◽  
Prognostic Value ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Follicular Thyroid Cancer
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