Cytotaxonomic analysis of the Himalayan species of the genusTorilis (Apiaceae)

Hamal, I. A.; Koul, A. K.

doi:10.1007/bf00935971

Cited by 4 publications

(5 citation statements)

References 4 publications

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“…The karyotype consists of 2 metacentric, 8 submetacentric and 2 subtelocentric chromosomes ( Fig. 1A) corresponding with the karyotypes given by Hamal & Koul (1988) and Baltisberger & Baltisberger (1995). Conyza canadensis (= Erigeron canadensis L.) s.l.…”

Section: Ethmentioning

confidence: 53%

IAPT/IOPB chromosome data 21

Baltisberger¹,

Baltisberger²

2016

TAXON

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Section: Ethmentioning

confidence: 53%

IAPT/IOPB chromosome data 21

Baltisberger¹,

Baltisberger²

2016

TAXON

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“…Haploid chromosome numbers of T. nodosa are also heterogeneous with n=ll and 12. On the basis of cytological investigation of Torilis (Hamal & Koul 1988, Gupta et al 1991, n=ll of T. elongatu and T. nodosa would be a dysploid reduction after polyploidy of x=6, not primitive one. X=6 would be the original base chromosome number of the genus Torilis from which other numbers might have been derived secondarily.…”

Section: Discussionmentioning

confidence: 99%

Evolutionary patterns in the Torilidinae inferred from ITS sequences

Lee

2003

Nordic Journal of Botany

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Evolutionary patterns of selected characters among 17 representatives of subtribe Torilidinae of family Apiaceae were investigated by comparative sequencing of the two internal transcribed spacers of the 18s‐26s nuclear ribosomal DNA repeat. Distribution of several palynological, cytological, morphological, and cotyledon characters reveals that many of these features are highly homoplastic. Base chromosome number of x=6 is not suggestive of monophyly of the genus Torilis. Features derived from secondary (vallecular) appendages of hits do not seem to be usekl characters for delimiting generic boundaries. Bristles on the primary ridges of fruits are ancestral within the subtribe; curved bristles and spines emerged. Characters of cotyledons and pollen grains support the generic relationships between Lisaea and Turgenia.

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“…For detailed cytological technique see Hamal and Koul (1988). A minimum of 5 meta -phase spreads belonging to different individuals were considered for somatic karyotype analysis.…”

Section: Methodsmentioning

confidence: 99%

“…In the monobasic group, 5 species (T. arven -sis, T. leptophylla, T. scabra, T. stocksiana and T. tenella) have chromosome numbers based on x=6 while in T. elongata, chromosome number is based on x=11. T. japonica is represented in three cytotypes with 2n=12, 16 and 18 and for T. nodosa two cytotypes (2n=22, 24) are on record (Majovsky 1970, Cauwet and Jury 1978, Hamal and Koul 1988, Wulff 1939, Engstrand 1970, Constance et al 1971, Strid 1971. Chromosome numbers of 5 species are based on x=6 only.…”

Section: Methodsmentioning

confidence: 99%

Chromosome Evolution in the Genus Torilis(Adans)Apiaceae.

1991

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Torilis, a southwest Asian genus of the family Apiaceae comprises 10 species (Heywood 1978), of which, 8 have been cytologically screened for chromosome number. Except for the work of Gupta et al. (1985), Hamal and Koul (1988) and Gupta (1990), no detalied study is available on the somatic chromsome complements. We have analysed five species from Kashmir Himalayas in order to understand the phylogenetic relationships between different species and the mode of karyotype evolution within the genus.

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Cytotaxonomic analysis of the Himalayan species of the genusTorilis (Apiaceae)

Cited by 4 publications

References 4 publications

IAPT/IOPB chromosome data 21

IAPT/IOPB chromosome data 21

Evolutionary patterns in the Torilidinae inferred from ITS sequences

Chromosome Evolution in the Genus Torilis(Adans)Apiaceae.

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