Studies on the cytology of South Indian Aspidiaceae.

Bhavanandan, K. V.

doi:10.1508/cytologia.46.195

Cited by 7 publications

(7 citation statements)

References 19 publications

(9 reference statements)

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“…Tardieu (Mitui 1967, Tsai and Shieh 1985, D. maximum (Bir 1961(Bir ,1971); 5x, D. sylvaticum (Bory) Sw. (Manton 1954, Manton and Sledge 1954, Abraham et a/. 1962, Bhavanandan 1981, D. tavancorium Bedd. (Manickam 1984, lrudayaraj and Manickam 1987, Manickam and lrudayaraj 1988, and 8x, D. hians Kunze ex Klotzsch (Walker 1966).…”

Section: Cytological and Reproductive Characteristicsmentioning

confidence: 99%

Cytological and Reproductive Studies on Japanese Diplazium (Woodsiaceae; Pteridophyta): Apomictic Reproduction in Diplazium with Evergreen Bi- to Tripinnate Leaves

1999

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Mitotic and meiotic chromosomes were examined in a total of 162 plants representing 16 taxa in the Japanese Diplazium, including polymorphic terrestrial species with evergreen bi-to tripinnate leaves. Diplazium hachibnse, D. virescens var. virescens, var. conterminum, var. okinawaense, and two other unnamed varieties, D. kawakamii var. kawakamiii, D. dilatatum var. heterolepia, D. taiwanense, D. x kawabatae (= D. dilatatum x taiwanense), D. X takii (= D. hachipense x virescens var. virescens), and D. x nakamurae (= D. hachibnse X virescens var. conterminum) are apomictic triploids (2n=n=123). Diplazium ammianum and D. esculentum are sexual diploids (2n= 82, n=41) and D. subtripinnaturn is a sexual tetraploid (2n= 164, n= 82). Diprazium dilatatum var. dilatatum includes both sexual diploid and apomictic triploid populations.Cultivated gametophytes of six triploid taxa produced sporophytes apogamously, confirming their apomictic reproduction. All three putative hybrids, D. xkawabatae, D. X takii, and D. X nakamurae, are triploid, apomictic, and fertile taxa, therefore they are not the result of hybridization between known pairs of Japanese Diplazium plants.

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Section: Cytological and Reproductive Characteristicsmentioning

confidence: 99%

Cytological and Reproductive Studies on Japanese Diplazium (Woodsiaceae; Pteridophyta): Apomictic Reproduction in Diplazium with Evergreen Bi- to Tripinnate Leaves

1999

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“…The two diploid species share the band with R f value of 0.399 which is absent in the tetraploid species S. subtruncatus. S. arbuscula is both morphologically and cytologically primitive in having erect rhizome and with diploidal chromosome number (n=36) [16][17][18][19] . S. subtruncatus is morphologically primitive and cytologically advanced in having erect rhizome and tetraploidal chromosome number (n=72) and S. unitus is morphologically advanced and cytologically prmitive in having long creeping rhizome and diploidal chromosome number (n=36).…”

Section: Discussionmentioning

confidence: 99%

Studies on isozymic variation among the South Indian species of Sphaerostephanos

Irudayaraj

Johnson

2011

Asian Pacific Journal of Tropical Biomedicine

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“…4x/Sexual Khare (1980); Vasudeva and Bir (1983) S. India n = 36 and n = 72 2x and 4x/ Sexual Ghatak (1961aGhatak ( , 1961bGhatak ( , 1962Ghatak ( , 1963 (Continued) 2x/Sexual Ghatak (1961aGhatak ( , 1977 E. Himalayas n = 34 2x/Sexual Mehra and Bir (1958) (Continued) Bir (1965aBir ( , 1969Bir ( , 1971Bir ( , 1964Bir ( -1965; Bhavanandan (1981); Manickam (1984); Irudayaraj and Manickam (1987); Manickam and Irudayaraj (1988); Irudayaraj (1998); Bir and Irudayaraj (2001) S. India Sexual Bhavanandan (1968, 1981; Ammal (1990) S. India n = 82 4x/Sexual Bhavanandan (1971); Irudayaraj and Manickam (1987); Manickam and Irudayaraj (1988); Irudayaraj and Bir (1994) S. India Bhavanandan (1968Bhavanandan ( , 1981; Ghatak (1977); Irudayaraj and Manickam (1987); …”

Section: Marattiaceaementioning

confidence: 99%

“…4x/Sexual Roy and Singh (1975); Khare (1980) (Continued) Ghatak (1962Ghatak ( , 1963; Vasudeva (1978, 1979); Bhavanandan (1981); Irudayaraj and Manickam (1987); Manickam and Irudayaraj (1988) 2x/Sexual Loyal (1960a, 1960b); Khullar and Gupta (1978); Mehra and Khullar (1980); Punetha (1989) W. Himalayas Roy andSingh (1973, 1975); Khare (1980); Vasudeva and Bir (1983) W. India S. India Ghatak (1962Ghatak ( , 1963; Bir (1965aBir ( , 1964Bir ( -1965; Kuriachan 1964Kuriachan -65, 1965Kuriachan , 1967; Ghatak (1977); Vasudeva (1978, 1979); Irudayaraj andManickam (1986, 1987); Manickam and Irudayaraj (1988); Ammal (1990) E. Himalayas Bir (1960) C. India n = 37 2x/Sexual …”

Section: Marattiaceaementioning

confidence: 99%

“…The increasing number of chromosomal data on the ferns has played a significant role in the identity and phylogenetic affinities of several species and genera of ferns (Jin Mei et al2006). The cytological changes like hybridity, polyploidy and aneuploidy have played an important role in the evolution (Bhavanandan 1981). Evolution in many ferns involves changes in ploidy level and reproductive system (Manton 1950).…”

Section: Introductionmentioning

confidence: 99%

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Studies on the chromosome numbers of ferns from Kolli Hills, Eastern Ghats, Tamil Nadu, India

Vijayakanth¹,

Sathish²,

Rajkumar

et al. 2018

Caryologia

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The chromosomal observations were carried out on 66 taxa collected from Kolli Hills belongs to 38 genera and 20 families. Sixty two ferns were studied cytologically for the first time in this study area. The present study has revealed the presence of 32 sexual diploids, 20 sexual tetraploids, 2 apogamous tetraploids, 9 sexual octoploids, 2 apogamous triploids and one 12-ploid sexual species. The sexuality of polyploids has also been calculated. The maximum number of chromosomes (n=171) were observed in Adiantum hispidulum while a minimum number of chromosomes (n=30) were in Adiantum latifolium, Cheilanthes tenuifolia and Pellaea boivinii. About the 20 genera were observed to be with more than one base number and remaining 18 genera with a single base number. ARTICLE HISTORY

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Studies on the cytology of South Indian Aspidiaceae.

Cited by 7 publications

References 19 publications

Cytological and Reproductive Studies on Japanese Diplazium (Woodsiaceae; Pteridophyta): Apomictic Reproduction in Diplazium with Evergreen Bi- to Tripinnate Leaves

Cytological and Reproductive Studies on Japanese Diplazium (Woodsiaceae; Pteridophyta): Apomictic Reproduction in Diplazium with Evergreen Bi- to Tripinnate Leaves

Studies on isozymic variation among the South Indian species of Sphaerostephanos

Studies on the chromosome numbers of ferns from Kolli Hills, Eastern Ghats, Tamil Nadu, India

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