منابع مشابه
Male Sterility In Soybean-An Overview
The most common type of reproductive mutations observed in the soybean [Glycine max (L.) Merr.] are those that induce male sterility. The high frequency of occurrence of male-sterile mutations indicates that a number of genes influence the processes of microgametogenesis and microsporogenesis. The current knowledge of these mutations is summarized. The origins of male-sterile mutations, their i...
متن کاملSegregation distortion in a region containing a male-sterility, female-sterility locus in soybean.
In diploid segregation, each alternative allele has a 50% chance of being passed on to the offspring. Mutations in genes involved in the process of meiotic division or early stages of reproductive cell development can affect allele frequency in the gametes. In addition, competition among gametes and differential survival rates of gametes can lead to segregation distortion. In a recent transform...
متن کاملMolecular mapping of five soybean genes involved in male-sterility, female-sterility.
In soybean, asynaptic and desynaptic mutants lead to abnormal meiosis and fertility reduction. Several male-sterile, female-sterile mutants have been identified and studied in soybean, however, some of these mutants have not been mapped to locations on soybean chromosomes. The objectives of this study were to molecularly map five male-sterile, female-sterile genes (st2, st4, st5, st6, and st7) ...
متن کاملThe male sterility locus ms3 is present in a fertility controlling gene cluster in soybean.
Soybean [Glycine max (L.) Merr.] is self-pollinated. To produce large quantities of hybrid seed, insect-mediated cross-pollination is necessary. An efficient nuclear male-sterile system for hybrid seed production would benefit from molecular and/or phenotypic markers linked to male fertility/sterility loci to facilitate early identification of phenotypes. Nuclear male-sterile, female-fertile ms...
متن کاملTemperature and Photoperiod Effects on Sterility in a Cytoplasmic Male-Sterile Soybean
efficient pollinators (Fujita et al., 1997; Schoen and Brown, 1991). Manual cross-pollination to produce large quantities of hybrid soyIn practice, the degree of sterility of CMS plants often bean seed is difficult and time consuming. An environmentally stable sterility system is one of the necessary components to produce large is less than 100%, depending upon the origin of the quantities of h...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1988
ISSN: 0002-9122
DOI: 10.1002/j.1537-2197.1988.tb12169.x