Results 31 to 40 of about 10,746,066 (301)
Chromosome Number Variation in Iranian Populations of Acorus calamus [PDF]
Different ploidy levels, diploid (2n=2x=24) to hexaploid (2n=6x=72) have been reported for Acorus calamus, a perennial medicinal plant. According to available information, there is a significant relationship between the ploidy level and essential oil ...
Abbas Gholipour
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CYTOGENETICS OF CHILEAN LAND PLANTS (EMBRYOPHYTA): STATE-OF-THE-ART AND PROSPECTS [PDF]
Chile is located in the south-western region of South America along the Pacific Ocean and contributes to the worldwide flora with ca. 6,120 species of Bryophyta, Pteridophyta, Pinophyta, Gnetophyta, and Magnoliophyta (1.9% of worldwide total species ...
Jara Seguel P., Urrutia Estrada J.
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CHROMOSOME SET AND SOME PROBLEMS OF CANIS AUREUS IN CAUCASICA
For the first time in the present resort chromosome set and some problems of Canis aureus ecology is described taking into account the structure of hail high altitude zone of mountain ecosystem.
R. I. Dzuev +2 more
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Chromosome number is a key feature of the higher-order organization of the genome, and changes in chromosome number play a fundamental role in evolution.
William A. Freyman, S. Höhna
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Cyto-systematical study of the genus Senna Mill. in diverse geographical locations of Uttar Pradesh
Senna Mill. is one of the most typical genus of caesalpiniodeae, with wide geographical distribution and diversification. The research work was planned with an objective of taxonomical characterization and assessment of the meiotic behaviour of wild ...
Girjesh Kumar, Kaushal Tripathi* and Moni Mishra
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In this study we showed that constitutive heterochromatin, GC-rich DNA and rDNA are implicated in chromosomal rearrangements during the basic chromosome number changing (dysploidy) in Reichardia genus.
S. Siljak-Yakovlev +5 more
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Chromosome counts of some Zingiberaceous species from Thailand [PDF]
The data on chromosome numbers of 22 species belonging to 10 genera of Zingiberaceae distributed in Thailand were investigated. The somatic numbers range from 20 to 48 showing diploidy and polyploidy.
Ladda Eksomtramage +3 more
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Circumnutation in the growth of Chara rhizoids
The chromosome numbers of 24 species of Achillea L. were determined, among them 4 for the first time (A. chamaemelifolia, A. sulphurea, A. teretifolia, A. vermicularis). A tetraploid form of A. lingulata was found for the first time. The occurrence of di-
Janina Dąbrowska
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Chromosome number change (polyploidy and dysploidy) plays an important role in plant diversification and speciation. Investigating chromosome number evolution commonly entails ancestral state reconstruction performed within a phylogenetic framework ...
Jamie McCann +4 more
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Problematic octaploid forms and a new chromosome number in the genus Achillea L., 2n = 126
Among the offspring of a problematic form of Achillea sp., a 2n = 126 seedling which probably arose as the result of fusion of unreduced octo- and hexaploid gametes (72 + 54) was found along with seedlings having an octaploid chromosome number (2n = 72).
Janina Dąbrowska
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