Anther Culture and Chromosome Doubling in Mediterranean Japonica Rice

Author(s):  
Isidre d’Hooghvorst ◽  
Irene Ferreres ◽  
Salvador Nogués
Euphytica ◽  
2013 ◽  
Vol 195 (1) ◽  
pp. 31-44 ◽  
Author(s):  
X. Serrat ◽  
M. Cardona ◽  
J. Gil ◽  
A. M. Brito ◽  
L. Moysset ◽  
...  

2019 ◽  
Vol 36 (4) ◽  
pp. 269-273
Author(s):  
Irene Ferreres ◽  
Mirari Ortega ◽  
Camilo López-Cristoffanini ◽  
Salvador Nogués ◽  
Xavier Serrat

2000 ◽  
Vol 50 (3) ◽  
pp. 197-202 ◽  
Author(s):  
Masaaki Daigen ◽  
Osamu Kawakami ◽  
Yuji Nagasawa

2000 ◽  
Vol 50 (3) ◽  
pp. 203-206 ◽  
Author(s):  
Masaaki Daigen ◽  
Yosuke Hoshi ◽  
Noriaki Hashimoto ◽  
Yuji Nagasawa
Keyword(s):  

HortScience ◽  
2015 ◽  
Vol 50 (11) ◽  
pp. 1671-1676 ◽  
Author(s):  
Davut Keleş ◽  
Hasan Pınar ◽  
Atilla Ata ◽  
Hatıra Taşkın ◽  
Serhat Yıldız ◽  
...  

The most successful technique used to obtain haploid plant in pepper is anther culture. The chromosome content of haploid plants can be doubled spontaneously or using colchicine. In this study, we compared the rate of spontaneous doubled haploidy of different pepper types. Seven charleston, six bell, eight capia, and seven green pepper genotypes were used as plant material. Murashige and Skoog (MS) nutrient medium with 4 mg·L−1 naphthaleneacetic acid (NAA), 0.5 mg·L−1 6-benzylaminopurine (BAP), 0.25% activated charcoal, 30 g·L−1 sucrose, and 15 mg·L−1 silver nitrate (AgNO3) was used. Ploidy levels of plants obtained through anther culture were detected using both flow cytometry and simple sequence repeats (SSR) markers. The results showed that different spontaneous doubled haploidy rates were obtained from different pepper types. The highest rate was observed in bell pepper type with 53.4% (mean of six genotypes) of haploid plants undergoing spontaneous chromosome doubling. This was followed by charleston and capia types with 31.9% and 30.4% doubling, respectively. Green pepper type gave the lowest spontaneous doubled haploidy rate with 22.2% doubling. The results obtained from this study will be useful both for future work on haploidy in pepper and for breeding programs.


Genome ◽  
1988 ◽  
Vol 30 (2) ◽  
pp. 177-181 ◽  
Author(s):  
S. G. Metz ◽  
H. C. Sharma ◽  
T. A. Armstrong ◽  
P. N. Mascia

Anther-derived, doubled haploid populations were obtained from two hard red winter wheats, 'Centurk' and NB88. Spontaneous doubling frequency, efficiency of colchicine treatment, and vernalization requirement were evaluated within each population. In cytological evaluation among the regenerates, haploids, diploids, haploid aneuploids, and diploid aneuploids were observed. Most regenerates were either haploid or diploid. The frequency of anthers producing at least one haploid, diploid, or aneuploid was the same for both genotypes. The regenerates from the same anther had the same ploidy level 83 % of the time, suggesting the callus was usually derived from one microspore. Over 60% of the anthers produced at least one diploid plant. The high frequency of spontaneous doubling suggests that chromosome doubling by colchicine treatment could be eliminated. Ninety-eight percent of the colchicine-treated 'Centurk' plants produced seed, while only 43% of the NB88 colchicine-treated plants produced seed. Anther culture did not replace the vernalization requirement. Vernalization was required for uniform flowering. Results indicate that it is feasible to use 'Centurk', NB88, and other genotypes with high callus induction, plantlet regeneration, and colchicine response to efficiently produce doubled haploids.Key words: wheat, Triticum aestivum L., anther culture, doubled haploid, chromosome doubling, aneuploidy, vernalization.


2018 ◽  
Vol 134 (2) ◽  
pp. 205-215 ◽  
Author(s):  
Isidre Hooghvorst ◽  
Eduardo Ramos-Fuentes ◽  
Camilo López-Cristofannini ◽  
Mirari Ortega ◽  
Raimon Vidal ◽  
...  

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