Abstract
Genetic improvement of the cultivated soybean [ Glycine max (L.) Merr.] may be possible through hybridization with its wild progenitor, G. soja Sieb. & Zucc. When useful genetic traits are found in the wild species, backcrossing is a method that may be useful for transferring the desired genes from G. soja to G. max . One objective of our study was to determine the number of generations of backcrossing necessary to recover the yield and agronomic performance of the cultivated parent following interspecific hybridization of the two species. A second objective was to determine if the yield potential of the recurrent parent in a backcrossing program could be enhanced by the introgression of G. soja germplasm. Two G. soja accessions were crossed to one of two high‐yielding G. max cultivars, followed by five backcrosses to the respective G. max parent. The F 2 plants from the backcross populations were visually examined and selected for absence of vining, lack of hardseededness, shattering resistance, maturity, and seed coat color similar to the G. max parent. Progeny of selected plants from the backcross populations were evaluated for seed yield, maturity, lodging, and height in four environments during 2 years. Significant variation was observed among lines in each backcross generation for the four traits. The mean yield and lodging resistance of the populations improved from the BC 1 to the BC 4 generation. No line from the BC 1 generation performed as well as the recurrent parent for all traits. Three backcrosses to the cultivated parent were necessary to obtain a reasonable number of lines similar to the recurrent parent. The introgression of G. soja germplasm into the two soybean cultivars was not an effective method for increasing their yield potential.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Lines varied significantly for seed yield, maturity, lodging and height in every backcross generation.
- Taxon
- Soybean
Glycine maxt0 - Outcome
- seed yield, maturity, lodging, and heighte1
- Qualifier
- each backcross generatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant variation was observed among lines in each backcross generation for the four traits.”
e1“evaluated for seed yield, maturity, lodging, and height in four environments during 2 years”
t0“Soybean”
Claim · model-written summary
Population mean yield and lodging resistance improved from BC1 to BC4.
- Taxon
- SoybeanGlycine maxt0
- Material
- BC 4e0
- Outcome
- mean yield and lodging resistancee0
- Direction
- improvede0
- Comparator
- BC 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean yield and lodging resistance of the populations improved from the BC 1 to the BC 4 generation.”
t0“Soybean”
Claim · model-written summary
No BC1 line matched the recurrent parent for all traits.
- Taxon
- SoybeanGlycine maxt0
- Material
- BC 1e0
- Outcome
- performed as well as the recurrent parent for all traitse0
- Comparator
- recurrent parente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No line from the BC 1 generation performed as well as the recurrent parent for all traits.”
t0“Soybean”
Claim · model-written summary
Three backcrosses were needed to obtain a reasonable number of recurrent-parent-like lines.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- lines similar to the recurrent parente0
- Value
- Three backcrossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three backcrosses to the cultivated parent were necessary to obtain a reasonable number of lines similar to the recurrent parent.”
t0“Soybean”
Claim · model-written summary
Introgression of G. soja germplasm did not effectively increase cultivar yield potential.
- Taxon
- soybeanGlycine maxe0
- Treatment
- introgression of G. soja germplasme0
- Outcome
- yield potentiale0
- Direction
- not an effective method for increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The introgression of G. soja germplasm into the two soybean cultivars was not an effective method for increasing their yield potential.”
The same questions in other papers
Glycine soja · yield · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
transgenic · yield · Glycine max (soybean)Positive and negative results
5 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.