Meiotic Irregularities in Pollen Sterile Sweet Pepper (<i>Capsicum annuum</i> L.)

Abstract

The pollen sterility in sweet pepper was reported for the first time by Martin and Grawford (1951) in the growth of the variety "Clemson Cayene No. 4558" in field and glass-house conditions. The inheritance of pollen sterility in Capsicum annuum was studied by Peterson (1958) who supposed that it is due to the interaction of nuclear and cytoplasmic factors. He introduced the monogenous basement of the character but admits the presence of two non-allelic genes too, probably in different linkage groups. Ohta (1961a) supposes only one pair of nuclear genes in the interaction with S-factor of cytoplasm. Hirose (1962) and Hirose and Takashima (1963) describe the occurrence of the cytoplasmic pollen sterility in some Japanese cultivars of sweet pepper. Ohta (1961b) arrives to the conclusion that the pollen sterility of sweet pepper does not originate from a virus because the asexual transfer by means of grafting is not possible. We concluded from the splitting conditions gained in crossing the pollen sterile plants with 12 cultivars of sweet pepper that the pollen sterility is due to two pairs of nuclear genes ms1 and ms2 together with the S-factor of cytoplasm.

Cytogenetic effects of agricultural chemicals. II. Effects of herbicides "lasso and basagran" on chromosomal mechanism in relation to yield and yield components in chilli (capsicum annuum L.)

“…11 and 12). The findings are in conformity with that of Novak and Betlach (1970), Amer and Ali (1974) and Reddy and Rao (1978).…”

Cytogenetic effects of agricultural chemicals I. Effects of insecticides "BHC and nuvacron" on chromosomal mechanism in relation to yield and yield components in chilli (Capsicum annuum L.).

“…11 and 12). The findings are in confirmity with that of Liang et al (1969) and Novak and Betlach (1970).…”

Cytogenetics of Polyploids

“…The genes controlling the course of mitosis and meiosis are designated by Svardson (1945) as mitotic and meiotic genes (White house 1969). The group of these genes must also involve factors determing origin, structure and activity of spindle (Novak and Betlach 1970). And if it is so, then either the gene or genes controlling meiotic events (Kaul 1965a) or the balance of polygenes or modifying genes controlling fertility (Ramanujam and Parthasarthy 1953) are adversely affected by the chemical, the expression of which affects the plant form, function and phenotype.…”