Naslov
Further cytogenetic analyses of the Croatian triploid shallot "Ljutika" (Allium cepa var. viviparum, Alliaceae) and its comparison with the Indian triploid "Pran"

Autori
Puizina, Jasna ; Papeš, Dražena

Izvornik
Plant systematic and evolution (0378-2697) 208 (1997), 1-2; 11-23

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Alliaceae; Allium cepa; A. cepa var. viviparum; viviparni lukovi; hibridno podrijetlo; triploidi; kariotipovi; mejoza; regija nukleolarnog organizatora
(Alliaceae; Allium cepa; A. cepa var. viviparum; viviparous onions; hybridogenic onions; triploids; karyotypes; meiosis; nucleolus organizing region)

Sažetak
Feulgen and silver-stained karyotypes and meiosis of two triploid viviparous onion forms (Allium cepa var.viviparum), the Croatian ldquoLjutikardquo and the Indian ldquoPranrdquo, were comparatively analyzed. The results of chromosome measurements show that ldquoLjutikardquo and ldquoPranrdquo are karyologically not identical, although significant similarities were found in the morphology of their chromosomes. Five geographically distant clones of ldquoLjutikardquo showed good agreement in the number and gross morphology of the chromosomes and in the number and position of NORs and interphase nucleoli. Heterotrivalents were predominant in meiosis of ldquoLjutikardquo but a relatively high frequency of higher multivalents together with univalents and bivalents were also observed. The relationship between ldquoLjutikardquo and ldquoPranrdquo and their possible origin are discussed.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA