Karyotype Analysis of a Daylily Clone Reared from Aseptically Cultured Tissues

Daylily: Botany, Propagation, Breeding

“…They observed that there was a slight decrease over time in the genetic diversity of diploid cultivars that were released between 1940and 1964. From 1965to 1980, the genetic diversity remained unchanged. Interestingly, the genetic diversity of 40 tetraploid cultivars released froni 1980 to 1998 was slightly lower (Nei's similarity coefficient of 0.850) than that of 21 diploid cultivars released during the same period (0.814).…”

Karyotype variability in regenerated plants of Urginea indica Kunth.

“…In Liliaceae, although protocols for plant regeneration are available for over 26 species (Flick et al 1983) data on cytogenetic analysis are rather meagre (Novak 1980, Krikorian et al 1981and Sheridan 1975. In the present project on tissue culture of medicinally important plants of family Liliaceae, a large number of plants were regenerated from bulb derived calli of Urginea indica (Jha et al 1984).…”

“…Heteromorphic pairs were also found in maize somaclones (Green et al, 1977). Cytogenetic changes have also been observed in regenerated plants of Alfa alfa (McCoy and Bingham 1977) , Celery (Bowers and Orton 1982), Lycopersicum (Ancora and Sree Ramlulu 1981), wheat (Bennici and D'Amato 1978), potato (Sree Ramlulu et al 1983) and Brassica napus (Newell et al 1984) .In Liliaceae, although protocols for plant regeneration are available for over 26 species (Flick et al 1983) data on cytogenetic analysis are rather meagre (Novak 1980, Krikorian et al 1981and Sheridan 1975. In the present project on tissue culture of medicinally important plants of family Liliaceae, a large number of plants were regenerated from bulb derived calli of Urginea indica (Jha et al 1984).…”

The Cytological Status of Plants Regenerated from Shoot‐Meristem Culture of Pisum sativum L

“…In recent years, a substantial amount of work has been done on chromosome numbers in regenerated plants (SHERIDAN 1975, Liu and GHEN 1976, AHLOOWALIA 1976, GREEN et al 1977, GAMBORG et al 1977, BENNICI and D' A.MATO 1978, KASPERBAUER et al 1979, ORTON 1980, KRIKORIAN et al 1981, MCGOY et al 1982, AHMED and GHOSH 1982. However, in mosr of these cases cytogenetic characterization was mainly confined to numerical variation of chromosomes.…”