Mining of quantitative trait loci and candidate genes for seed size and shape across multiple environments in soybean ( Glycine max )

2021 ◽  
Author(s):  
Yaqian Sun ◽  
Rui Tian ◽  
Zhenqi Shao ◽  
Shiliang Chen ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Glycine Max ◽  
Quantitative Trait Loci ◽  
Candidate Genes ◽  
Seed Size ◽  
Quantitative Trait ◽  
Size And Shape ◽  
Trait Loci ◽  
Multiple Environments

Mapping Quantitative Trait Loci for Seed Size and Shape Traits in Soybean

2016 ◽  
Vol 42 (9) ◽  
pp. 1309
Author(s):  
Qiang CHEN ◽  
Long YAN ◽  
Ying-Ying DENG ◽  
Er-Ning XIAO ◽  
Bing-Qiang LIU ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Seed Size ◽  
Quantitative Trait ◽  
Size And Shape ◽  
Trait Loci

Mapping quantitative trait loci for seed size traits in soybean (Glycine max L. Merr.)

2010 ◽  
Vol 122 (3) ◽  
pp. 581-594 ◽  
Author(s):  
Yu Xu ◽  
He-Nan Li ◽  
Guang-Jun Li ◽  
Xia Wang ◽  
Li-Guo Cheng ◽  
...  
Keyword(s):  
Glycine Max ◽  
Quantitative Trait Loci ◽  
Seed Size ◽  
Quantitative Trait ◽  
Trait Loci ◽  
Glycine Max L

scholarly journals Candidate Genes and Quantitative Trait Loci for Grain Yield and Seed Size in Durum Wheat

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 312
Author(s):  
Giacomo Mangini ◽  
Antonio Blanco ◽  
Domenica Nigro ◽  
Massimo Antonio Signorile ◽  
Rosanna Simeone
Keyword(s):  
Quantitative Trait Loci ◽  
Grain Yield ◽  
Durum Wheat ◽  
Candidate Genes ◽  
Seed Size ◽  
Quantitative Trait ◽  
Yield Components ◽  
Snp Array ◽  
Qtl Cluster ◽  
Trait Loci

Grain yield (YLD) is affected by thousand kernel weight (TKW) which reflects the combination of grain length (GL), grain width (GW) and grain area (AREA). Grain weight is also influenced by heading time (HT) and plant height (PH). To detect candidate genes and quantitative trait loci (QTL) of yield components, a durum wheat recombinant inbred line (RIL) population was evaluated in three field trials. The RIL was genotyped with a 90K single nucleotide polymorphism (SNP) array and a high-density genetic linkage map with 5134 markers was obtained. A total of 30 QTL were detected including 23 QTL grouped in clusters on 1B, 2A, 3A, 4B and 6B chromosomes. A QTL cluster on 2A chromosome included a major QTL for HT co-located with QTL for YLD, TKW, GL, GW and AREA, respectively. The photoperiod sensitivity (Ppd-A1) gene was found in the physical position of this cluster. Serine carboxypeptidase, Big grain 1 and β-fructofuranosidase candidate genes were mapped in clusters containing QTL for seed size. This study showed that yield components and phenological traits had higher inheritances than grain yield, allowing an accurate QTL cluster detection. This was a requisite to physically map QTL on durum genome and to identify candidate genes affecting grain yield.

Quantitative trait loci associated with oligosaccharide and sucrose contents in soybean (Glycine max L.)

2005 ◽  
Vol 48 (1) ◽  
pp. 106-112 ◽  
Author(s):  
Hyeun-Kyeung Kim ◽  
Sung-Taeg Kang ◽  
Jun-Hyeun Cho ◽  
Myoung-Gun Choung ◽  
Duck-Yong Suh
Keyword(s):  
Glycine Max ◽  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Trait Loci ◽  
Glycine Max L

scholarly journals A Fine mapping quantitative trait loci that underlie resistance to soybean sudden death syndrome using NILs and SNPs.

2018 ◽  
pp. 583-591
Author(s):  
Yi Chen Lee ◽  
M Javed Iqbal ◽  
Victor N Njiti ◽  
Stella Kantartzi ◽  
David A. Lightfoot
Keyword(s):  
Quantitative Trait Loci ◽  
Sudden Death ◽  
Candidate Genes ◽  
Quantitative Trait ◽  
Soybean Cyst Nematode ◽  
Snp Markers ◽  
Sudden Death Syndrome ◽  
Isogenic Line ◽  
Trait Loci ◽  
Glycine Max L

Soybean (Glycine max (L.) Merr.) cultivars differ in their resistance to sudden death syndrome (SDS), caused by Fusarium virguliforme. Breeding for improving SDS response has been challenging, due to interactions among the 18-42 known resistance loci. Four quantitative trait loci (QTL) for resistance to SDS (cqRfs–cqRfs3) were clustered within 20 cM of the rhg1 locus underlying resistance to soybean cyst nematode (SCN) on Chromosome (Chr.) 18. Another locus on Chr. 20 (cqRfs5) was reported to interact with this cluster. The aims here were to compare the inheritance of resistance to SDS in a near isogenic line (NIL) population that was fixed for resistance to SCN but segregated at two of the four loci (cqRfs1 and cqRfs) for SDS resistance; to examine the interaction with the locus on Chr. 20; and to identify candidate genes underlying QTL. Used were; a NIL population derived from residual heterozygosity in an F5:7 recombinant inbred line EF60 (lines 1-38); SDS response data from two locations and years; four segregating microsatellite and 1,500 SNP markers. Polymorphic regions were found from 2,788 Kbp to 8,938 Kbp on Chr. 18 and 33,100 Kbp to 34,943 Kbp on Chr. 20 that were significantly (0.005 < P > 0.0001) associated with resistance to SDS. The QTL fine maps suggested that the two loci on Chr. 18 were three loci (cqRfs1, cqRfs, and cqRfs19). Candidate genes were inferred.  An epistatic interaction was inferred between Chr. 18 and Chr. 20 loci. Therefore, SDS resistance QTL were both complex and interacting.

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