Chen, Yiwu and Nelson, Randall L.
2006. Variation in Early Plant Height in Wild Soybean. Crop Science 46:865-869.
Chen et al focus on one single trait identified in QTL analysis: plant height. In modern strands the soybean grows straight,
like a stalk. Wild strands are like vines, almost like weeds and extremely hard to measure. In order to compare particular
germplasm data and to evaluate cultivars this kind of data was needed. For this reason different methods were used to
measure height and maturity levels. Different maturity markers (defined by points of height) were given to wild strands and
the conclusion was that wild soybeans mature much more rapidly than domestic ones. Most importantly, wild soybean
grows more rapidly and robustly earlier in its life than domestic soybean.
Chung, Gyuhwa; Singh, Ram J.
2008. Broadening the Genetic Base of Soybean: A Multidisciplinary Approach. Critical Reviews in Plant Sciences,
Authors and researchers of this article employed a multidisciplinary approach to broaden the genetic base of the soybean
through various modern biotechnological analyses. They build on knowledge already known about the wild progenitor of
the modern Glycine max (Glycine soja), and comment on the difficulties currently in determined a smaller geographic
origin. Since the 1970s, agreements about the geographic origin has become narrower, but still is very broad. It is currently
thought that the soybean was domesticated in the 11
Century under the Shang Dynasty in China, however some theories
suggest that it was domesticated independently in different East Asian regions. Narrowing the genetic base and comparing
molecular data will allow us in the future to narrow further the geographic location of the soybean since archaeological
evidence is scarce and sometimes inconclusive since wild and domestic soybean seeds did not differ in size even during
early soybean cultivation.
Crawford, Gary; Underhill, Anne; Zhao, Zhijun; Lee, Gyoung-Ah; Feinman, Gary; Nicholas, Linda ; Luan, Fengshi; Yu,
Haiguang; Fang, Hui; Cai, Fengshu
2005. Late Neolithic Plant Remains from Northern China: Preliminary Results from Liangchengzhen, Shandong. Current
Flotation and dating techniques dating back to the Longshan culture (2000BC to 3000BC) uncovered what the authors call
“[soybean] seeds identical to those of wild seeds.” These seeds have been discovered in contexts full of evidence of rice,
millets and other beans, however authors warn that conclusions about whether these bits of wild soybean seeds are wild or
domestic would be too hasty to make. This is evidence on the edge of conclusive discovery, however. In regard to dating,
these seeds fall into Hymowitz’s estimations about the origin of soybean based on linguistic and historical data. It is likely
that these seeds were a product of cultivated soybean. Even if not, it is also likely that wild soybean plants were used as