Cytological studies of Angiosperms (174 species) from District Kangra, Himachal Pradesh (India)

  title={Cytological studies of Angiosperms (174 species) from District Kangra, Himachal Pradesh (India)},
  author={Savita Rani and Santosh Kumari and R. C. Gupta and Rakesh Kumar Chahota},
  journal={Plant Systematics and Evolution},
  pages={851 - 862}
During the present study, 360 populations of 174 species belonging to 82 genera and 23 families of dicots have been cytologically worked out from different localities of District Kangra (Himachal Pradesh) between 550 and 3,800 m altitude. As many as 10 species including Berberis ceratophylla (2n = 28), Caltha alba (2n = 32), Corydalis meifolia (2n = 16), C. thyrsiflora (2n = 16), Impatiens reidii (2n = 14), Indigofera hamiltonii (2n = 16), Potentilla thomsonii (2n = 14), Sedum trifidum (2n = 36… 

Identification of new cytotypes of Valeriana jatamansi Jones, 1970 (Valerianaceae) from North-Western Himalayan region of India

Valeriana jatamansi, a medicinally important species of the family Valerianaceae, has been cytologically studied in different geographical areas of North-Western Himalayan region of India and shows significant variations with respect to morphology as well as geographical distribution.

Morphometric and Cytological Analysis of Different Cytotypes of Dioscorea deltoidea Wall., 1850 (Dioscoreaceae) from North-Western Indian Himalayas

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At genus level chromosomal observations show the active role of various evolutionary processes responsible for chromosomal diversity in the majority of these genera distributed in the Western Himalayas of India.

Cytomorphology, Geographical Distribution and Ethnobotany of Genus Oxalis Linn. from Western Himalaya (India)

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Distribution Pattern, Variations of Morphology and Chromosome Numbers of Sium latijugam C. B. Clarke (Apiaceae) from the Kashmir Himalayas

The tetraploids were restricted to higher altitudes and characterized by abnormal meiosis leading to high pollen sterility and formation of variable sized pollen grains, which was new addition to the species for the first time.

Chromosome Counts through Male Meiosis in Some Dicots from the Hills around Shimla, Himachal Pradesh

Analysis of chromosomal data on the worked out species reveals that aneuploidy and polyploidsy has a role to play in evolution.

A cytogenetic and pollen study of annual Medicago species from Soummam Valley (Northeastern of Algeria)

A cytogenetic study of eight Medicago L. species sampled from the Soummam Valley (northeastern Algeria) explored Chromosome numbers and meiosis irregularities during microsporogenesis, and pollen viability rate and pollen size.

Can Knowledge of Genetic Distances, Genome Sizes and Chromosome Numbers Support Breeding Programs in Hardy Geraniums?

Overall, parental difference in genome size and chromosome number were not limiting for cross compatibility and good crossing compatibility was correlated to a Jaccard similarity coefficient as parameter for parental relatedness of about 0.5.

Online resources for chromosome number databases

Available online resources for animal and plant chromosome number databases are surveyed and briefly discussed.