Ke-jing Wang

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Wild relatives of crops are an important source of genetic diversity for agriculture, but their gene repertoire remains largely unexplored. We report the establishment and analysis of a pan-genome of Glycine soja, the wild relative of cultivated soybean Glycine max, by sequencing and de novo assembly of seven phylogenetically and geographically(More)
Artificial selection played an important role in the origin of modern Glycine max cultivars from the wild soybean Glycine soja. To elucidate the consequences of artificial selection accompanying the domestication and modern improvement of soybean, 25 new and 30 published whole-genome re-sequencing accessions, which represent wild, domesticated landrace, and(More)
A novel variant of soybean Kunitz trypsin inhibitor (SKTI) was detected in 530 lines of wild soybean (Glycine soja). This variant showed an intermediate electrophoretic mobility between the Tia and Tic types. In isoelectric focusing polyacrylamide gel electrophoresis gels containing urea, this variant had a similar isoelectric point as that of Tia. The(More)
The wild soybean, an annual self-pollinating plant, is the progenitor of soybeans and is extensively distributed in the Far East of Russia, the Korea peninsula, China and Japan. Geographically, Japan is surrounded by sea and insulated from China. We preliminarily evaluate whether the Japanese and Chinese wild soybean germplasm pools are genetically(More)
Wild soybean (Glycine soja), the progenitor of soybeans, has become an important germplasm source for soybean breeding. The Chinese G. soja germplasm collection includes two subcollections, one typical wild soybean (G. soja) and the other ‘big seed type’ (semi-wild soybean, G. gracilis). In order to understand the nature of this big seed type subcollection,(More)
Introgression from soybean cultivars to its wild progenitor species is an interesting antidromic recombination in natural ecosystem with many consequences, including the alteration of genetic diversity, the origin of semi-wild soybean, and implication for biosafety of the wild progenitor species with future release of the genetically modified varieties.(More)
Wild and cultivated species of soybeans have coexisted for 5000 years in China. Despite this long history, there is very little information on the genetic relationship of Glycine soja and G. max. To gain insight into the major events in the history of the subgenus Soja, we examined 20 simple sequence repeat (SSR) markers of a large number of accessions(More)
Soyasaponins, natural chemical compounds in soybean seeds, have important health benefits and also influence soyfood taste. A total of 3795 wild soybean (Glycine soja) accessions, collected from almost all the areas where wild soybean grows in China, were analysed using thin-layer chromatography to clarify saponin composition polymorphisms within Chinese(More)
Wild soybean individuals were sampled from ten habitat sites in Beijing region, China and were assessed using 36 SSR markers for the genetic variation among the habitat subpopulations. AMOVA analysis showed 57.46 % inter-population and 42.54 % intrapopulation genetic variation. The genetic variation had geographical regionality. The drought-stressed and(More)
Genetic diversity is reduced from wild soybean to cultivars and from landraces to modern varieties. However, intraspecies genetic diversity loss between characters or phenotypes also existed in wild soybean. We revealed the phylogenic relationship of character types in Chinese wild soybean using 42 SSR markers. We conjectured that white flower, no-seed(More)