US EPA

7430850 

Journal Article 

The Secondary Gene Pool of Barley (Hordeum bulbosum): Gene Introgression and Homoeologous Recombination 

Ruge-Wehling, B; Wehling, P; , 

2014 

SPRINGER-VERLAG BERLIN 

BERLIN 

BIOTECHNOLOGICAL APPROACHES TO BARLEY IMPROVEMENT 

331-343 

10.1007/978-3-662-44406-1_17 

WOS:000357814600018 

http://link.springer.com/10.1007/978-3-662-44406-1_17
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While the primary gene pool with the two subspecies of Hordeum vulgare subsp. vulgare and H. vulgare subsp. spontaneum has long been utilised as a rich and easy-to-use gene resource for barley breeding, the secondary gene pool proved more difficult to be tapped for novel gene variants. During the past 20 years, though, ample evidence has been accumulated that the secondary gene pool of barley also presents a rich resource of trait genes which are of potential interest to breeders. To date, most disease resistances have been in the focus of interest and were introgressed from Hordeum bulbosum into barley, among them resistances to a variety of pathogenic fungi as well as viruses. The use of molecular techniques such as in situ hybridisation and molecular markers has provided a deeper insight into the chromosomal locations of introgressed segments, their sizes and recombination activities against a barley-genetic background and has paved the way for a deliberate selection of recombinant offspring which can be used in plant breeding programmes. Thus, it can be stated that the secondary gene pool of barley has been opened up as a novel genetic resource in barley breeding. 

Kumlehn, J; Stein, N; 

978-3-662-44405-4