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  • 1
    Electronic Resource
    Electronic Resource
    Nuclear DNA content inCelosia (Amaranthaceae) (1992)
    Springer
    Plant systematics and evolution 182 (1992), S. 253-257 
    Details
    ISSN: 1615-6110
    Keywords: Amaranthaceae ; Celosia ; DNA content ; polyploidy ; genome evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Nuclear DNA amount of five species ofCelosia ranging from 2x to 12x varies from 3.26 (2x) to 9.70pg (12x). The diploidC. trigyna has twice as much DNA/basic genome as other taxa, which is commensurate with its taxonomic position and genetic isolation. There is insignificant variation in DNA/basic genome among 4x, 8x, and 12x taxa. Therefore, DNA/nucleus shows a strong positive correlation with ploidy level. The different accessions of 4x taxa show constancy of DNA amounts. There is no correlation of seed weight with DNA amount.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00939191
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Genome size in gymnosperms (1986)
    Springer
    Plant systematics and evolution 153 (1986), S. 119-132 
    Details
    ISSN: 1615-6110
    Keywords: Gymnosperms ; Nuclear DNA content ; evolution ; polyploidy ; woody habit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The DNA 2C and per chromosome values of 57 species belonging to 22 genera of gymnosperms have been analysed. The overall range is 12-fold with a modal value of about 30.0 pg.Cycadales exhibit a 2-fold difference. AmongConiferales with a 4-fold variation, thePinaceae have higher mean DNA contents as well as a greater range and diversity than other families. Remarkable interspecific differences are found inCycas, Picea, Larix, Pinus, Callitris, Cupressus, andChamaecyparis. Despite this, there is a constancy of basikaryotypes within these genera.Gnetum shows a distinctly low DNA value.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989421
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    Paper (German National Licenses)
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