نتایج جستجو برای: sensitive genic male sterile
تعداد نتایج: 613992 فیلتر نتایج به سال:
High yields of mesophyll protoplasts were obtained from leaves of corn (Zea mays L., inbred W64A). Many protoplasts survived a week in the dark in a simple osmoticum. Culture filtrate from Helminthosporium maydis race T at dilutions of 1:10,000 to 1:20,000 destroyed protoplasts with Texas male-sterile (T) cytoplasm. Substantial damage to protoplasts with nonmale-sterile (N) cytoplasm occurred o...
Currently, there is no economical way to produce large quantities of F1 hybrid soybean seed in the USA. One of the fundamental requirements for hybrid seed production is the availability of a stable male-sterile, femalefertile system. However, the more challenging barrier is the efficient transfer of pollen from the male parent to the female parent. This could potentially be achieved through po...
Evaluation of sterility stability between male sterile lines for favorite lines selection is necessary to production of hybrid rice program. So that in present research utilization of 7 cytoplasmic male sterile lines (A line) and 33 male sterile lines product of 7th backcrosses of Iranian varieties with IRRI standard male sterility lines. Experiment was based on a split plot to time design in R...
Male-sterile, female-fertile plants were used to produce hybrid soybean seed. Manual cross-pollination using male-sterile plants to produce large quantities of hybrid seed is difficult and time-consuming because of the low success rate in cross-pollination. Insect pollinators may be suitable vectors to transfer pollen, but the most suitable vector for pollen transfer from the male parent to the...
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) ...
Hybrid daughters of crosses between Drosophila melanogaster females and males from the D. simulans species clade are fully viable at low temperature but have agametic ovaries and are thus sterile. We report here that mutations in the D. melanogaster gene Hybrid male rescue (Hmr), along with unidentified polymorphic factors, rescue this agametic phenotype in both D. melanogaster/D. simulans and ...
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