scholarly journals CRISPR/Cas9‐mediated single and biallelic knockout of poplar STERILE APETALA ( PopSAP ) leads to complete reproductive sterility

2020 ◽  
Vol 19 (1) ◽  
pp. 23-25 ◽  
Author(s):  
Abdul Azeez ◽  
Victor Busov
Keyword(s):  
Reproductive Sterility

Hand-Tripped Flowers Promote Seed Production in Arachis lignosa, a Wild Peanut1

1990 ◽  
Vol 17 (1) ◽  
pp. 22-24 ◽  
Author(s):  
Donald J. Banks
Keyword(s):  
Seed Production ◽  
Growth Chamber ◽  
Self Incompatibility ◽  
Self Pollination ◽  
Reproductive Sterility ◽  
High Degree

Abstract In trials conducted in the greenhouse, growth chamber, and outdoors, no pegs or pods were produced when A. lignosa (Chod. et Hassl.) Krap. et Greg. nom. nud. plants were allowed to pollinate naturally. However, hand tripping flowers, especially in the greenhouse, resulted in significant increases in pod production. The results suggest that the high degree of reproductive sterility usually noted for A. lignosa in culture is due to pollination failure rather than to physiological self incompatibility. The somewhat truncated shape of the stigma and its elevated position relative to the anthers probably restricts natural self-pollination without the aid of pollinating vectors such as bees.

scholarly journals Genetic engineering of reproductive sterility in forest trees

1995 ◽  
Vol 1 (3) ◽  
pp. 303-303
Author(s):  
Steven H. Strauss ◽  
William H. Rottmann ◽  
Amy M. Brunner ◽  
Lorraine A. Sheppard
Keyword(s):  
Genetic Engineering ◽  
Forest Trees ◽  
Reproductive Sterility

GENETIC ENGINEERING OF REPRODUCTIVE STERILITY IN PINUS RADIATA

1998 ◽  
pp. 417-426 ◽  
Author(s):  
A. Mouradov ◽  
T. Sawbridge ◽  
B. Hamdorf ◽  
T. Glassick ◽  
L. Murphy ◽  
...  
Keyword(s):  
Genetic Engineering ◽  
Pinus Radiata ◽  
Reproductive Sterility

Genetic engineering of reproductive sterility in forest trees

1995 ◽  
Vol 1 (1) ◽  
pp. 5-26 ◽  
Author(s):  
Steven H. Strauss ◽  
William H. Rottmann ◽  
Amy M. Brunner ◽  
Lorraine A. Sheppard
Keyword(s):  
Genetic Engineering ◽  
Forest Trees ◽  
Reproductive Sterility

scholarly journals Range extension and reproduction of the barnacle Balanus perforatus in the eastern English Channel

2003 ◽  
Vol 83 (1) ◽  
pp. 73-82 ◽  
Author(s):  
R.J.H. Herbert ◽  
S.J. Hawkins ◽  
M. Sheader ◽  
A.J. Southward
Keyword(s):  
East Coast ◽  
Large Population ◽  
Geographic Range ◽  
Range Extension ◽  
English Channel ◽  
Isle Of Wight ◽  
North East ◽  
The North ◽  
Reproductive Sterility ◽  
Eastern Channel

The distribution of the warm-water barnacle, Balanus perforatus, was surveyed along the south coast of England and the north-east coast of France between 1993 and 2001, repeating work carried out between the 1940s and 1960s. The species has recovered from catastrophic mortality during the severe winter of 1962–1963 and was found over 120 km (UK) and 190 km (France) east of previous records on both sides of the Channel. The presence of the species in the eastern Channel refutes suggestions in the 1950s that larvae, and hence adults, would not be found east of the Isle of Wight because of reproductive sterility close to the limits of distribution. Brooding of specimens translocated to Bembridge, Isle of Wight, commenced in May, earlier than previously observed in British waters, and continued until September. The stage of embryo development at Bembridge in mid-August was comparable to that of the large population at Lyme Regis, Dorset 100 km further west. However the size of brood per standard body weight was greater at Lyme Regis. Factors influencing the rate of colonization and further geographic range extension of the species as a possible result of climate change, are discussed.

Gamma-Ray Irradiation Control of Whiteflies Bemisia tabaci (Hemiptera: Aleyrodidae) and Trialeurodes vaporariorum in the Exportation of Fresh Strawberries

2019 ◽  
Vol 112 (4) ◽  
pp. 1611-1617 ◽  
Author(s):  
Sun-Ran Cho ◽  
Hyun-Na Koo ◽  
Soeun Shin ◽  
Hyun Kyung Kim ◽  
Jong-Heum Park ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Trialeurodes Vaporariorum ◽  
Export Market ◽  
Annual Growth ◽  
Sweetpotato Whitefly ◽  
Greenhouse Whitefly ◽  
Reproductive Sterility ◽  
Gamma Ray Irradiation

Abstract Whitefly pests, including the sweetpotato whitefly, Bemisia tabaci (Gennadius), and the greenhouse whitefly, Trialeurodes vaporariorum (Westwood), are economically important in agriculture. With the annual growth of the domestic fresh fruit export market, various quarantine treatment methods are being used to export strawberries of better quality. The objective of the present study was to evaluate the effects of gamma rays on the development and reproductive sterility of B. tabaci and T. vaporariorum. In both species, the eggs were completely inhibited from hatching at 50 Gy, and the emergence of third-instar nymphs was completely suppressed at 150 Gy. Some adult B. tabaci and T. vaporariorum spawning occurred at 100 and 70 Gy, respectively; however, at these irradiation levels, F1 hatchability was completely inhibited. Dosimetry results showed that the penetrating power of gamma ray in the strawberry-filled box was the lowest at the mid-box position. Therefore, B. tabaci and T. vaporariorum were placed in the middle of the strawberry-filled box and irradiated. A gamma-ray irradiation of 100 Gy suppressed the development and reproduction of eggs and adults in both B. tabaci and T. vaporariorum. Our data suggest that at least 100 Gy should be used for the control of these two species of whitefly for strawberry export.

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