Improving the accuracy of dose estimates from automatically scored dicentric chromosomes by accounting for chromosome number

The distribution of Sonchus palustris in Slovakia was studied using herbarium specimens and literary sources. The herbarium studies, supplemented with targeted field search in the years 2015–2018, revealed 61 new localities and confirmed many other older locations. The species has been recorded in 19 phytogeographical districts and sub-districts of Slovakia. Most of the records are concentrated in the Podunajská nížina lowland in SW Slovakia and in the Ipel'sko-rimavská brázda region in southern Slovakia. Our results showed that the species is relatively common in different types of wetlands and its re-evaluation in the recent version of the Slovak red list is not needed. Chromosome number data for two new populations in eastern Slovakia (both 2n = 18) were counted. The distribution map is given.

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New Chromosome Number Reports for Angiosperms Native or Introduced to Hawai‘i, with Additional Reports for Fiji and Samoa1

Pacific Science ◽

10.2984/73.3.8 ◽

2019 ◽

Vol 73 (3) ◽

pp. 411

Author(s):

Michael Kiehn ◽

David H. Lorence

Keyword(s):

Chromosome Number

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CHROMOSOME NUMBER DETERMINATIONS IN FAMILY COMPOSITAE, TRIBE ASTEREAE. IX. NORTH AMERICAN TAXA. II

Rhodora ◽

10.3119/18-07 ◽

2019 ◽

Vol 121 (985) ◽

pp. 37 ◽

Cited By ~ 1

Author(s):

John C. Semple ◽

Rachel E. Cook ◽

Gary H. Morton ◽

James B. Beck ◽

Rita Lopez Laphitz

Keyword(s):

Chromosome Number ◽

North American

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Cytology and Breeding of Hexaploid Alfalfa. I. Stability of Chromosome Number 1

Crop Science ◽

10.2135/cropsci1979.0011183x001900030028x ◽

1979 ◽

Vol 19 (3) ◽

pp. 389-393 ◽

Cited By ~ 6

Author(s):

Sheng‐Tian Yen ◽

R. P. Murphy

Keyword(s):

Chromosome Number

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CHROMOSOME NUMBER REPORTS XCVIII

Taxon ◽

10.1002/j.1996-8175.1988.tb00928.x ◽

1988 ◽

Vol 37 (1) ◽

pp. 194-196

Author(s):

Áskell Löve

Keyword(s):

Chromosome Number

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The Origin of Workerless Parasites inLeptothorax(S. Str.) (Hymenoptera: Formicidae)

Psyche A Journal of Entomology ◽

10.1155/1995/69812 ◽

1995 ◽

Vol 102 (3-4) ◽

pp. 195-214 ◽

Cited By ~ 5

Author(s):

Jürgen Heinze

Keyword(s):

Chromosome Number ◽

Evolutionary Origin ◽

Social Parasites ◽

Leptothorax Acervorum ◽

Using Data

The evolutionary origin of workerless parasitic ants parasitizing colonies ofLeptothorax(s.str.) is investigated using data on morphology, chromosome number, and allozyme phenotype of both social parasites and their hosts. Of the three previously proposed pathways, the evolution of workerless parasites from guest ants or slave-makers is unlikely, at least according to a phenogram obtained by UPGMA clustering of Nei's similarities based on seven enzymes, lntraspecific evolution of the workerless parasitesDoronomyrmex goesswaldi, D. kutteri, andD. pacisfrom their common host,Leptothorax acervorumcannot be excluded with the present data. The workerless parasiteL. paraxenus, however, clearly differs from its host,L.cf.canadensis, in morphology and biochemistry, and most probably did not evolve from the latter species. It is proposed to synonymizeDoronomyrmexunderLeptothorax(s.str.).

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