Microspore cells develop into male gametophytes, which are released as pollen. Under certain stress conditions, the developmental pathway of microspores can be transformed an embryo instead pollen with haploid technology. In this experiment, 2 pepper breeding lines (G-1 and G-2) 4 nutrient media formed Murashige & Skoog (1962-MS) + 30 g L-1 sucrose or maltose without vitamins antioxidan...

Generation of homozygous double haploid (DH) lines by androgenesis is a promising alternative to selfpollination programs across generations. Despite the routine use anther culture in peppers, there are still many bottlenecks and improvements methodology required. The aim this study was determine effects structure nutrient medium (semi-solid layer) addition biotin ascorbic acid media on obtaini...

Beet is considered a difficult breeding object due to its biological peculiarities that make it obtain hybrid seed progeny. In cross-pollinated crops, the maximum hybridization achieved by using sterile mother plants, which are extremely rare in nature. Inbreeding one of ways isolate genotypes with cytoplasmic male sterility, controlled recessive alleles nuclear genes and S-factor mitochondrial...

INVESTIGATIONS to be reported in this paper have been concerned chiefly whh X-ray-induced embryonic lethal mutations in Habrobracon. Some of the data and one of the methods have already been given (HEIDENTHAL 1952, 1953; HEIDENTHAL, C ARK and GOWEN 1955). The purpose of the author's work, as well as that of others, has been in part to study the frequency of different kinds of lethal-bearing gen...

Doubled haploidy methodology is commonly used in many agronomically important crops to speed the development of new cultivars. There are a number of advantages in using haploidy technology in both practical application (varietal development, mutagenesis, transformation) and basic research (genomics, biochemical, and physiological studies). Haploid plants are commonly produced using one of four ...

The assessment of oocytes showing only one pronucleus during assisted reproduction is associated with uncertainty. A compilation of data on the genetic constitution of different developmental stages shows that affected oocytes are able to develop into haploid, diploid, and mosaic embryos with more or less complex chromosomal compositions. In the majority of cases (~80%), haploidy appears to be ...

Maize (Zea mays L.) is a plant that grown for human and animal consumption, as well biofuel range of industrial applications throughout the world. By 2020, it predicted to outnumber wheat rice in terms demand. Farmers pick among two types maize varieties modern agriculture. Hybrids open-pollinated are mostly influenced by current environmental economic conditions availability seed preferred var...