scholarly journals Applications of biotechnology and genomics in potato improvement

2013 ◽  
Vol 11 (8) ◽  
pp. 907-920 ◽  
Author(s):  
Philippa J. Barrell ◽  
Sathiyamoorthy Meiyalaghan ◽  
Jeanne M.E. Jacobs ◽  
Anthony J. Conner
Keyword(s):  
Potato Improvement

Use of Ipomoea trifida (HBK.) G. Don germ plasm for sweet-potato improvement. 2. Fertility of synthetic hexaploids and triploids with 2n gametes of I. trifida, and their interspecific crossability with sweet potato

Genome ◽  
1991 ◽  
Vol 34 (2) ◽  
pp. 209-214 ◽  
Author(s):  
Rosanna Freyre ◽  
Masaru Iwanaga ◽  
Gisella Orjeda
Keyword(s):  
Sweet Potato ◽  
Egg Production ◽  
Ipomoea Batatas ◽  
2N Gametes ◽  
Pollen Production ◽  
2N Pollen ◽  
Ipomoea Trifida ◽  
Potato Improvement ◽  
Synthetic Hexaploids ◽  
Interspecific Crossability

Twenty-two synthetic hexaploids and 33 triploids with 2n pollen production of Ipomoea trifida were used in crosses to estimate their male and female fertility and their crossability with sweet potato, Ipomoea batatas (L.) Lam. Several important conclusions were drawn. (i) The fertility of pollen of the triploid plants was confirmed, which suggested they are truly functional 2n pollen. (ii) The average male fertility of hexaploid plants was higher than that of triploid with 2n pollen production plants. (iii) 2n egg production was observed in several triploid genotypes, (iv) From a polycross, 3079 seeds with normal shapes were produced. These represent a population of hexaploid I. trifida with a wide genetic base, and they may be important material for sweet-potato improvement, (v) A total of 3275 seeds were obtained from crosses with six sweet-potato female parents, of which only 60 germinated, indicating the existence of an interspecific barrier. The implications of 2n gametes for breeding and evolution of sweet potato are also discussed.Key words: Ipomoea batatas, Ipomoea trifida, 2n gametes, sexual polyploidization, triploid.

scholarly journals Potato improvement through genetic engineering

2021 ◽  
Vol 12 (1) ◽  
pp. 479-496
Author(s):  
María del Mar Martínez-Prada ◽  
Shaun J Curtin ◽  
Juan J Gutiérrez-González
Keyword(s):  
Genetic Engineering ◽  
Potato Improvement

Molecular Breeding for Potato Improvement

2011 ◽  
pp. 41-67 ◽  
Author(s):  
David De Koeyer ◽  
Haixia Chen ◽  
Vicki Gustafson
Keyword(s):  
Molecular Breeding ◽  
Potato Improvement
Sign in / Sign up

Export Citation Format

Share Document