منابع مشابه
Cytogenetics of semi-fertile triploid and aneuploid intergeneric vine cacti hybrids.
Crosses between the diploid Hylocereus polyrhizus, as the female parent, and the tetraploid Selenicereus megalanthus, as the male parent, yielded triploid and aneuploid hybrids. The fruits of these hybrids combined the attractive appearance of Hylocereus fruits with the delicious taste of S. megalanthus fruits. The aim of this work was to assess the fertility and breeding potential of the tripl...
متن کاملvIne-cactI pItayas - the neW crops oF the World
Until 1994, only scarce research existed on these plants; however the worldwide interest in this novel fruit crop is evident, as numbers of pitaya-related publications have grown rapidly, especially during the past decade .There is a big confusion about both botanical and commercial names and there is a need to clear this point. herein, we attempt to review existing knowledge on the taxonomy, b...
متن کاملGenetic relationships among Hylocereus and Selenicereus vine cacti (Cactaceae): evidence from hybridization and cytological studies.
BACKGROUND AND AIMS Hylocereus and Selenicereus are native to tropical and sub-tropical America. Based on its taxonomic status and crossability relations it was postulated that H. megalanthus (syn. S. megalanthus) is an allotetraploid (2n = 4x = 44) derived from natural hybridization between two closely related diploid taxa. The present work aimed at elucidating the genetic relationships betwee...
متن کاملChromosome segregation from cell hybrids
We searched for evidence of aberrant movement or position of segregant set chromosomes in Cbanded and G-11 -banded early-phase hamstermouse and hamster-human cell hybrids that had been prepared with minimal disruption. No evidence was obtained for an increased frequency of multipolar mitosis, delayed or precocious metaphase congression or anaphase segregation, or for exclusion of chromosomes fr...
متن کاملSpontaneous Chromosome Aberrations in Triploid Tradescantia Hybrids.
T HAS recently been found that chromosome aberrations of the types I induced by various kinds of radiations occur spontaneously during the development of the pollen grains in diploid species and especially in species hybrids of Tradescantia (GILES 1940). The present studies have shown that the frequency of these aberrations is even higher in triploid Tradescantia hybrids. Furthermore, it has be...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 2003
ISSN: 1471-8505
DOI: 10.1093/jhered/esg064