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A–D: An inflorescence. A: Karnataka benthamii (C.B. Clarke) P.K. Mukh., B: Pinda concanensis (Dalzell) P.K. Mukh. & Constance, C: Polyzygus tuberosus Walp., D: Vanasushava pedata (Wight) P.K. Mukh. & Constance. E–H: Mitotic plate. E: Karnataka benthamii (C.B. Clarke) P.K. Mukh., F: Pinda concanensis (Dalzell) P.K. Mukh. & Constance, G: Polyzygus tuberosus Walp., H: Vanasushava pedata (Wight) P.K. Mukh. & Constance. (I–J) Meiotic counts. I: Karnataka benthamii (C.B. Clarke) P.K. Mukh., J: Pinda concanensis (Dalzell) P.K. Mukh. & Constance. (K–N) Ideograph. K: Karnataka benthamii (C.B. Clarke) P.K. Mukh., L: Pinda concanensis (Dalzell) P.K. Mukh. & Constance, M: Polyzygus tuberosus Walp., N: Vanasushava pedata (Wight) P.K. Mukh. & Constance. Scalebar: A–D = 10 mm, E–J = 10 μm, K–N = 5 μm. reported 8 chromosomes with secondary constrictions but we failed to observe secondary constriction even in early metaphase. He reported different chromosome types viz. median (m) = 16, sub-median (sm) = 6 and sub-terminal (st) = 16 centromeric chromosomes while we observed just two types viz. median (m) = 8 and sub-median (sm) = 36 centromeric chromosomes. Karnataka, Pinda and Vanasushava shared common basic chromosome number, x = 11. While Polyzygus showed x = 12. The placement of Karnataka in Seselinae group is justified through base chromosome number x = 11. Same base chromosome number predominantly
Source publication
The family Apiaceae comprises 428 genera worldwide, of which 68 are represented in India. Karnataka P.K. Mukh. & Constance, Pinda P.K. Mukh. & Constance, Polyzygus Dalzell, Sivadasania N. Mohanan & Pimenov and Vanasushava P.K. Mukh. & Constance are endemic genera to the country. The present communication is an attempt to provide chromosome counts a...
Contexts in source publication
Context 1
... diploid and haploid chromosome numbers of Karnataka were determined as 2n = 22 and n = 11, respectively ( Fig. 1 E, I). Chromosome size ranged from 1.66 to 2.54 µm. ...
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... arm ratio ranged from 1.59 to 2.69. Median (m) and sub-median (sm) centromeric chromosomes were found with a karyotype formula K: 6m+16sm ( Fig. 1 K for karyogram). ...
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... showed 2n = 22 and n = 11( Fig. 1 F, J). Chromosome size ranged from 1.59 to 2.57 µm. Total chromosome lengths of haploid compliment (TCLH) were found to be 22.24. The arm ratio ranged from 1.18 to 2.98. Median (m), sub-median (sm) and sub-terminal (st) centromeric chromosomes were found with a karyotype formula K: 10m+8sm+4st (Fig. 1L for ...
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... showed 2n = 22 and n = 11( Fig. 1 F, J). Chromosome size ranged from 1.59 to 2.57 µm. Total chromosome lengths of haploid compliment (TCLH) were found to be 22.24. The arm ratio ranged from 1.18 to 2.98. Median (m), sub-median (sm) and sub-terminal (st) centromeric chromosomes were found with a karyotype formula K: 10m+8sm+4st (Fig. 1L for ...
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... showed 2n = 36 (Fig. 1G). Chromosome size ranged from 0.73 to 2.01 µm. Total chromosome lengths of haploid compliment (TCLH) were found to be 19.7. The arm ratio ranged from 1.67 to ...
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... (sm), sub-terminal (st) and terminal (t) centromeric chromosomes were found with a karyotype formula K: 8sm+2st+26t (Fig. 1M for ...
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... showed 2n = 44 (Fig. 1H.). Chromosome size ranged between 2.35-1.21 µm. Total chromosome lengths of haploid compliment (TCLH) were found to be 39.64. The arm ratio ranged from 1.51 to 1.97. Median (m) and sub-median (sm) centromeric chromosomes were found with a karyotype formula K: 8m+36sm (Fig. 1N for ...
Context 8
... showed 2n = 44 (Fig. 1H.). Chromosome size ranged between 2.35-1.21 µm. Total chromosome lengths of haploid compliment (TCLH) were found to be 39.64. The arm ratio ranged from 1.51 to 1.97. Median (m) and sub-median (sm) centromeric chromosomes were found with a karyotype formula K: 8m+36sm (Fig. 1N for ...
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In the paper, chromosome number and karyotype of three endemic genera from China are reported for the first time. Our results show that Anzhengxia yechengnica has a karyotype formula 2n = 2x = 14 = 6m + 8sm and belongs to Stebbins-3A; Shangrilaia nana karyotype formula is 2n = 2x = 14 = 10m + 4sm(sat) and belongs to Stebbins-1A; Baimashania pulvina...
Citations
... Thus, he might have confused with vegetative characters of tuberous Apiaceae. Gosavi et al. (2016) worked on cytology of the endemic genera of Apiaceae from Central and Northern Western Ghats and in their work actually mentioned genus Karnataka is correctly matches with genus Polyzygus and mentioned genus Polyzygus is correctly matches with recently published genus Shrirangia. Thus, actual somatic chromosome number of Polyzygus and Shrirangia are 2n = 22 and 2n= 36 respectively. ...
Karnataka (Apiaceae) is a monotypic genus rediscovered after it’s type collection around 175 years from Mudbidri area of Dakshina Kannada (South Canara) district, Karnataka. Detailed morphological description, identity notes and photoplates have been provided based on fresh material collected by authors.
... Recently five species and one genus have been described from India by various authors in the family (Mohanan and Pimenov 2007, Kljuykov et al. 2019, Gosavi et al. 2020, Prabhukumar et al. 2020, Thakur et al. 2020, therefore the present account of the family Apiaceae are 69 genera and 245 species to the country. Six genera of the family are endemic to the country (Gosavi et al. 2016 Gosavi et al. (2020) and now it consist of two species. Major endemic genera of Apiaceae are diversified in the Western Ghats rather than rest of the country. ...
Shrirangia, a new monotypic genus of the family Apiaceae from low elevated lateritic plateaus of south Konkan region of Maharashtra, India is described and illustrated with a new species, Shrirangia concanensis. The new genus is related to Himalayan genus Chamaesium H.Wolff by the characters of: many (ca 10) ribbed fruit, primary and secondary types of ribs present but very distinct from it by having tuberous habit, ternate to bi‐ternate leaves, commissure plain undulate with 6–7 secondary ribs and vallecular and second types of vittae at dorsal face.
... Among them only one, Kedarnatha P.K.Mukh. & Constance, is reported from Himalaya (Mukherjee and Constance 1993) (Gosavi et al. 2016). Pinda concanensis (Dalzell) P.K.Mukh. ...
A new species, Pinda shrirangii Gosavi & Chandore, is described and illustrated from a high‐elevation region of northern Western Ghats, India. The new species is closely allied to the only other species in the genus, Pinda concanensis (Dalzell) P.K.Mukh. & Constance which was also described from the northern Western Ghats of Maharashtra state of India. Coloured photographs and illustrations are provided to facilitate the identification.
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