scholarly journals Marker-based Selection as a Tool for Enhancing the Efficiency of Two Conventional Breeding Methods of Self-fertilizing Crop Plants, the Generation-accelerated Bulk Breeding and Doubled Haploid Breeding

2005 ◽  
Vol 55 (4) ◽  
pp. 397-407 ◽  
Author(s):  
Katsuei Yonezawa ◽  
Takuro Ishii
Keyword(s):  
Doubled Haploid ◽  
Crop Plants ◽  
Breeding Methods ◽  
Conventional Breeding ◽  
Bulk Breeding ◽  
Doubled Haploid Breeding

Comparison of pedigree selection and doubled haploid breeding methods for high erucic acid rapeseed cultivar development

2005 ◽  
Vol 85 (4) ◽  
pp. 809-814 ◽  
Author(s):  
J. L. Jacobs ◽  
P. B.E. McVetty
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Doubled Haploid ◽  
Seed Quality ◽  
Breeding Methods ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Pedigree Selection ◽  
Doubled Haploid Breeding

Sixty families from pedigree selection and 60 lines from doubled haploid development per cross, for three different Brassica napus L. high erucic acid rapeseed (HEAR) crosses, were created and then compared for agronomic and seed quality performance in four environments in Manitoba in 2000 and 2001. Differences in mean performance for many traits were observed within crosses; however, these differences were not consistent among crosses. Similarly, there were differences observed in ranges for many traits within crosses but with few clear trends among crosses. Similar numbers of superior pedigree selection families and doubled haploid lines within and among crosses for individual traits and for combinations of all traits were found in this study. Financial and temporal resource requirements for these two breeding methods were found to be similar. It is concluded that both pedigree selection and doubled haploid breeding methods have their particular strengths and weaknesses but that neither is clearly superior for the development of B. napus HEAR cultivars. Key words: Brassica napus L., HEAR, breeding method comparisons

scholarly journals Comparison of Marker-assisted Selection and Conventional Breeding Methods for Selection of High Palatability Rice

2014 ◽  
Vol 46 (3) ◽  
pp. 250-259 ◽  
Author(s):  
Jung-Pil Suh ◽  
Young-Chan Cho ◽  
Yong-Jae Won ◽  
Jeong-Heui Lee ◽  
Eok-Keun Ahn ◽  
...  
Keyword(s):  
Marker Assisted Selection ◽  
Breeding Methods ◽  
Conventional Breeding ◽  
Selection Of

scholarly journals Breeding for higher productivity in mulberry

2012 ◽  
Vol 48 (No. 4) ◽  
pp. 147-156 ◽  
Author(s):  
K. Vijayan ◽  
P.P. Srivastava ◽  
P.J. Raju ◽  
B. Saratchandra
Keyword(s):  
Molecular Biology ◽  
Reproductive System ◽  
Considerable Improvement ◽  
Breeding Methods ◽  
Leaf Quality ◽  
Conventional Breeding ◽  
Leaf Yield ◽  
Speed Up ◽  
Silkworm Bombyx Mori ◽  
Made In

Mulberry (Morus L.) is an economically important tree being cultivated for its leaves to rear the silkworm Bombyx mori. Rearing of silkworm is an art and science popularly known as sericulture; an agrobased cottage industry provides employment to millions in China, India, Korea, Vietnam, etc. Mulberry is a perennial tree that maintains high heterozygosity due to the outbreeding reproductive system. It is recalcitrant to most of the conventional breeding methods, yet considerable improvement has been made in leaf yield and leaf quality. Conventional breeding in mulberry is a tedious, labour intensive and time taking process, which needs to be complemented with modern biotechnological methods to speed up the process. This article enumerates the problems, challenges, constraints and achievements in mulberry breeding along with recent advances in biotechnology and molecular biology to enable mulberry breeders to tackle specific problems more systematically and effectively.

scholarly journals Coffee (Coffea arabica L.): Methods, Objectives, and Future Strategies of Breeding in Ethiopia—Review

2021 ◽  
Vol 13 (19) ◽  
pp. 10814
Author(s):  
Yebirzaf Yeshiwas Melese ◽  
Semagn Asredie Kolech
Keyword(s):  
Coffea Arabica ◽  
Abiotic Factors ◽  
Rapid Development ◽  
Production Capacity ◽  
Breeding Methods ◽  
Conventional Breeding ◽  
Southwestern Ethiopia ◽  
Breeding Objectives ◽  
Full Production ◽  
Coffea Arabica L

Coffea arabica L. belongs to the Rubiaceae family, and the genus Coffea is believed to have a primary center of origin and genetic variability in the highlands of southwestern Ethiopia. It is a vital beverage commodity across the world and a valuable export product, ranking second in international trade after petroleum. Ethiopia is among the top five major coffee-producing countries and is Africa’s leading producer. However, its full production capacity has not yet been exploited, and research efforts to reduce biotic and abiotic factors through reproduction have been extremely limited. Hence, improvement through different breeding methods is essential to overcome the constraints in its production. Thus, the objective of this study is to review the different breeding methods applied for different traits in Ethiopia. Breeding methods depend on the type and the source of traits and the final breeding objectives. The main breeding objectives are production, resistance/tolerance to diseases, and cup quality. The commonly applied breeding methods are selected and intra-specific hybridization, germplasm enhancement, and the development of improved varieties with wider adaptability. There is also a practice of crossing parental lines selected for certain desirable traits for the development of hybrid varieties. Accordingly, some promising success has been obtained. Forty-one coffee varieties have been released so far. Because conventional breeding methods are time-consuming, integrating conventional breeding methods with biotechnological techniques could have an instrumental role in the rapid development of suitable varieties for the changing climate.

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