048 FERTILITY RESTORATION OF AN INTERSPECIFIC ALSTROEMERIA HYBRID BY GENETIC MANIPULATIONS IN VITRO
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چکیده
منابع مشابه
Genetic, embryonic and anatomical study of an interspecific cassava hybrid.
A molecular, anatomical and cytogenetic study of an interspecific hybrid between Manihot esculenta (cassava) and the wild species M. oligantha was carried out. Cytogenetics revealed relatively complete chromosome pairing and high viability of the pollen grains. Ovule structure examined by the clearing method showed polyembryony in 2.7% of the ovules. Doubling of the chromosome number resulted i...
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The dormancy characteristics and optimum conditions for seed germination of Alstroemeria ligtu had not been explained. In vitro and in vivo alstroemeria (A. ligtu hybrid) seed germination tests were conducted in a Randomized Completely Design at two different treatments (gibberellic acid (GA3) 0, 100, 200 and 400 mg/l with and without stratification in 5±1oC) in four replications. Seeds were pl...
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Many interspecies hybrids have been discovered in yeasts, but most of these hybrids are asexual and can replicate only mitotically. Whole-genome duplication has been proposed as a mechanism by which interspecies hybrids can regain fertility, restoring their ability to perform meiosis and sporulate. Here, we show that this process occurred naturally during the evolution of Zygosaccharomyces para...
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In a previous study (Harris & Cook, 1969) it was shown that when a chick erythrocyte nucleus was introduced into the cytoplasm of a mutant mouse cell lacking the enzyme inosinic acid pyrophosphorylase (IMP: pyrophosphate phosphoribosyl transferase, E.C. 2.4.2.8.), synthesis of this enzyme was induced. However, it was not certain whether the enzyme induced in this way was mouse or chick enzyme, ...
متن کاملAn AFLP-based genetic linkage map of channel catfish (Ictalurus punctatus) constructed by using an interspecific hybrid resource family.
Catfish is the major aquaculture species in the United States. The hybrid catfish produced by crossing channel catfish females with blue catfish males exhibit a number of desirable production traits, but their mass production has been difficult. To introduce desirable genes from blue catfish into channel catfish through introgression, a genetic linkage map is helpful. In this project, a genetic...
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ژورنال
عنوان ژورنال: HortScience
سال: 1994
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.29.5.434f