Genetic Diversity and Population Structure of Korean and Chinese Soybean [Glycine max
 (L.) Merr.] Accessions

Soybean (Glycine max (L.) Merrill) is among the most important crops worldwide due to its numerous uses in feed, food, biofuel, and significant atmospheric nitrogen fixation capability. To understand the genetic diversity and population structure of tropical soybean germplasm, 89 genotypes from diverse sources were analyzed using 7,962 SNP markers. The AMOVA results showed low diversity among and high within the populations, while the polymorphism information content (PIC) was 0.27. Both phylogenetic and principal component analysis grouped the 89 soybean genotypes into three major clusters, while population structure grouped the soybean genotypes into two subpopulations. On the other, the average Roger genetic distances within the study population was 0.34.The low diversity reported in the studied soybean germplasm pool is particularly worrying, considering the new trends of climate change and the emergence of new pests and diseases of soybean. Therefore, in order to address these challenges and develop soybean varieties with desirable traits, there is a need to broaden the genetic base of tropical soybean through the importation of germplasm from other countries.

Download Full-text

Genetic Diversity of North American Soybean (Glycine max L.) Cultivars as Revealed by RAPD Markers

Journal of Plant Sciences ◽

10.3923/jps.2011.36.42 ◽

2010 ◽

Vol 6 (1) ◽

pp. 36-42 ◽

Cited By ~ 3

Author(s):

M.G. AL-Saghir ◽

Abdel-Salam G. Abdel Sala

Keyword(s):

Genetic Diversity ◽

Glycine Max ◽

North American ◽

Rapd Markers ◽

Glycine Max L

Download Full-text

Genetic diversity of fast-growing rhizobia that nodulate soybean (Glycine max L. Merr)

Archives of Microbiology ◽

10.1007/s00203-003-0559-y ◽

2003 ◽

Vol 180 (1) ◽

pp. 45-52 ◽

Cited By ~ 24

Author(s):

Gustavo Salda�a ◽

Virginia Martinez-Alc�ntara ◽

Jos� M. Vinardell ◽

Ram�n Bellog�n ◽

Jos� E. Ru�z-Sainz ◽

...

Keyword(s):

Genetic Diversity ◽

Glycine Max ◽

Fast Growing ◽

Glycine Max L ◽

Fast Growing Rhizobia

Download Full-text

Evaluation of genetic diversity in 19 Glycine max (L.) Merr. accessions included in the Czech National Collection of soybean genotypes

Czech Journal of Genetics and Plant Breeding ◽

10.17221/6114-cjgpb ◽

2012 ◽

Vol 38 (No. 2) ◽

pp. 69-74 ◽

Cited By ~ 2

Author(s):

M. Baránek ◽

M. Kadlec ◽

J. Raddová ◽

M. Vachůn ◽

M. Pidra

Keyword(s):

Genetic Diversity ◽

Glycine Max ◽

Random Amplified Polymorphic Dna ◽

Breeding Programs ◽

Low Level ◽

Low Degree ◽

Soybean Genotypes ◽

Glycine Max L ◽

Rapd Polymorphism ◽

Selection Of

The random amplified polymorphic DNA (RAPD) technique was used to evaluate both genetic diversity among 19 soybean accessions included in the Czech National Collection of Soybean Genotypes and their potential as a new source of genetic variations for soybean breeding programs. Only 22 of all the 40 random primers used in RAPD reactions showed polymorphism acceptable for an effective characterisation of these accessions. Altogether 122 highly reproducible RAPD fragments were generated, 55 of them were polymorphic (46%). However, because of the previously observed low degree of RAPD polymorphism in the case of Glycine max, fragments with low level of informativeness were evaluated, too. Presented results enable the selection of genetically distinct individuals. Such information may be useful to breeders willing to use genetically diverse introductions in soybean improvement process. 

Download Full-text