Results 181 to 190 of about 5,168 (221)

MICROSPOROGENESIS IN PEANUT (ARACHIS HYPOGAEA)

American Journal of Botany, 1990
The stage of pollen development at the time of anther culture is an important factor in the production of haploids. The objectives of the current study were to develop a staining procedure for peanut (Arachis hypogaea L., ssp. hypogaea) microspores, to describe and document the stages of microsporogenesis in peanut, and to confirm a previous report ...
Martha C. Willcox, Sandra M. Reed, Joyce A. Burns, J. C. Wynne   +3 more
openaire   +1 more source

THE EFFECT OF DEHYDRATION ON MICROSPOROGENESIS IN TRADESCANTIA

American Journal of Botany, 1939
NUMEROUS STUDIES have been made of the effect of various agencies such as chemicals, abnormal temperature, radiation, and genetic factors in producing abnormal nuclear and cell division. Experimental observations have been made on both living and fixed material.
openaire   +1 more source

Chromosomal Behavior During Microsporogenesis

1994
The developmental stages of maize microsporogenesis have been examined to determine the time interval of floret maturation and stage duration (Hsu and Peterson 1981; Hsu et al. 1988), to identify meiotic mutants and genetic male sterility (Albertsen and Phillips 1981; Curtis 1985; Golubovskay and Khristolyubova 1985; Staiger and Cande 1991), to study ...
Ming T. Chang, M. Gerald Neuffer
openaire   +1 more source

Gene Expression During Microsporogenesis

1992
Naturally-occurring haploids have been known in the plant kingdom for many years; for example Blackslee et al recorded a haploid mutant of Datura as long ago as 1922. While it was appreciated that doubled haploids would provide the most effective route for the production of homozygous lines for plant breeding, this approach could not be applied since ...
M. A. Zaki, H. G. Dickinson
openaire   +1 more source

Microsporogenesis and Cytokinesis in Asimina triloba

Botanical Gazette, 1936
1. During meiosis the chromatin material of the pollen mother cells undergoes parasynaptic association. 2. At synizesis the chromatic knot lies on the side of the nucleus farthest from the mother cell wall. 3. The haploid number of chromosomes is apparently nine. 4. Cytokinesis of the pollen mother cells is by successive constriction.
openaire   +1 more source

Microsporogenesis and Formation of the Male Gametophyte

2000
The life cycle of flowering plants is characterized by an alternation between a dominant sporophytic generation and a highly reduced gametophytic generation. The seedling plant born of germination of the seed and the adult plant evolved from the seedling, constituting parts of the sporophytic generation, were topics of discussion in the previous ...
openaire   +1 more source

microsporogenesis, n.

2023
openaire   +1 more source

Nymphaea colorata, another basal angiosperm species with bidirectional cytokinesis in microsporogenesis

Plant Signaling and Behavior, 2021
Hong Wu, Ming Yang
exaly  

DNA Synthesis During Microsporogenesis

1977
Meiosis is a major and critical event in microsporogenesis. In the course of that event, the processes of pairing and crossing-over activate elements of chromosome organization that are probably not required for vegetative growth and reproduction.
openaire   +1 more source

Microsporogenesis in Phoradendron

Annals of Botany, 1932
openaire   +1 more source