Chromosome Numbers in the Subfamily Aurantioideae with Special Reference to the Genus Citrus

@article{Krug1943ChromosomeNI,
  title={Chromosome Numbers in the Subfamily Aurantioideae with Special Reference to the Genus Citrus},
  author={C. A. Krug},
  journal={Botanical Gazette},
  year={1943},
  volume={104},
  pages={602 - 611}
}
  • C. A. Krug
  • Published 1 June 1943
  • Biology
  • Botanical Gazette
1. The chromosome number of fourteen species (twenty forms) belonging to five different genera of the subfamily Aurantioideae are reported. All determinations available in the literature on chromosome numbers made in this subfamily are tabulated. The basic chromosome number is n = 9 for all forms so far investigated. About 40 triploids, some 190 tetraploids (including 19 in Poncirus, 1 in Triphasia, and 1 wild form in Fortunella), 1 pentaploid, 1 hexaploid, and 14 or 15 aneuploids have been… 
Karyological studies in ten species of Citrus(Linnaeus, 1753) (Rutaceae) of North-East India
TLDR
Ten Citrus species of North-East India have been karyo-morphologically analysed and three species are identified as true basic species from asymmetry studies of karyotypes as they reflect on the primitive nature of their genomes.
Cytogenetical Studies in Genus Citrus IV . Evolution in genus Citrus
Genus Citrus belong to subfamily Aurantoideae which constitutes one of the important subdivisions of family Rutaceae. Swingle (1948) recognises sixteen species under genus Citrus. While Tanaka (1937,
Chromosome number and secondary constriction variation in 51 accessions of a citrus germplasm bank
TLDR
The mitotic chromosomes of 51 citrus accessions from the Centro Nacional de Pesquisa em Mandioca e Fruticultura Tropical, Cruz das Almas, BA, Brazil, were analyzed and showed high variability in the number and position of secondary constrictions, indicating a high structural variability and heterozygosity of citrus germplasms.
Cytology of Some Malayan Species of Mangifera
TLDR
Observations show that the species of Mangifera foetida and M. caesia have the same chromosome number n=20 and 2n=40, indicating thereby a stability in the chromosome numbers in the genus, as in the case of Citrus and other genera.
Cytopalynology of some members of Rutaceae
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The chromosomal heterogeneity in the family (2n=14–162) coupled with dysploid series of base numbers (x=7–19) confirm that polyploidy and aneuploidsy have played a considerable role in speciation.
Cytogenetics of Rutaceae. V. High chromosomal variability in Citrus species revealed by CMA/DAPI staining
TLDR
The CMA staining revealed some chromosome markers for each Citrus species that may be very useful in the identification of zygotic versus nucellar embryos, as well as for further evolutionary studies.
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The admixture of individuals among wild and domestic populations revealed their introgression in populations by natural or farmer mediated agricultural practices and the plant diversity and their importance in conservation of plant genetic resources were determined.
Observações citológicas em citrus: V. poliploidia em relação à densidade e ao tamanho dos estomas em Citrus e outros gêneros das Aurantioideae.
TLDR
It is concluded that the determination of stomata area can be useful to geneticists and plant breeders working with Citrus, even when one has to distinguish between triploids and tetraploids in the same progeny, if one knows the stomATA area of the related diploids grown under identical circumstances.
Cytoevolutionary patterns inRutaceae
TLDR
It appears that diploid x = 18 is ancestral in the Rutaceae and the morphologically advancedCitroideae are invariant for x = 9 and may be a product of dysploid reduction.
New chromosome number inRutaceae
  • M. Guerra
  • Biology
    Plant Systematics and Evolution
  • 2004
TLDR
Detailed chromosome counts have been made in 61 species, belonging to 33 genera of Rutaceae, and the base number x = 10 is proposed for the genus Rutaceae on the basis of the present results.
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Iron alum, used as a pie-mordant, makes possible the use of smears on materials that do not smear satisfactorily otherwise.Chromosomes which do not stain well after storage when the usual methods are
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  • 1940
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