Validation and Designation of Quantitative Trait Loci for Seed Protein, Seed Oil, and Seed Weight from Two Soybean Populations

Crop Science ◽  
2004 ◽  
Vol 44 (4) ◽  
pp. 1218-1225 ◽  
Author(s):  
Vasilia A. Fasoula ◽  
Donna K. Harris ◽  
H. Roger Boerma
Crop Science ◽  
2013 ◽  
Vol 53 (3) ◽  
pp. 765-774 ◽  
Author(s):  
Safiullah M. Pathan ◽  
Tri Vuong ◽  
Kerry Clark ◽  
Jeong-Dong Lee ◽  
J. Grover Shannon ◽  
...  

2016 ◽  
Vol 96 (3) ◽  
pp. 423-432 ◽  
Author(s):  
Xiaomao Cheng ◽  
Shu Xia ◽  
Xihua Zeng ◽  
Jianxun Gu ◽  
Yuan Yang ◽  
...  

Seed oil content is a key seed quality trait determining the economic value of rapeseed (Brassica napus L.). However, it is a complex quantitative trait controlled by multiple genes. To this point, its genetic mechanism in rapeseed remains to be revealed. In the present study, we separately identified the quantitative trait loci (QTL) controlling seed oil content of B. napus using three generations of recombinant inbred line (RIL) populations (F4:5, F5:6, and F6:7) derived from a cross of two contrasting parents (M201, a high-oil parent, and M202, a low-oil parent) in four trials. The results indicated that the additive effects may be the primary factors contributing to the variation in seed oil content in B. napus. A total of 15 QTL for seed oil content were mapped. Two of them, namely qOC-A9-3 and qOC-A10, were consistently detected across two and all four environments, respectively. Meanwhile, qOC-A10 showed a large effect on phenotypic variation in seed oil content. The stability and significance of qOC-A10 was also validated in the near isogenic lines (NILs-qOC-A10) developed from the RIL population (F4:5) using marker-assisted selection. The qOC-A10 is of particular interest for further fine mapping and map-based cloning.


1996 ◽  
Vol 93 (3) ◽  
pp. 431-439 ◽  
Author(s):  
G. M. Timmerman-Vaughan ◽  
J. A. McCallum ◽  
T. J. Frew ◽  
N. F. Weeden ◽  
A. C. Russell

2012 ◽  
Vol 137 (5) ◽  
pp. 311-315 ◽  
Author(s):  
Jason Prothro ◽  
Katherine Sandlin ◽  
Rattandeep Gill ◽  
Eleni Bachlava ◽  
Victoria White ◽  
...  

The egusi watermelon (Citrullus lanatus) is popular in West Africa for its oil and protein-rich seed, which is consumed in soups and stews. The egusi phenotypic trait is controlled by a single recessive gene (eg) and is characterized by large seed size and fleshy, thick pericarp. An F2 mapping population was derived from Strain II (PI 279461) of the Japanese cultivar Yamato-cream with normal seed type and low seed oil percentage (SOP = 25.2%) and an egusi type from Nigeria [Egusi (PI 560023)] with high SOP (40.6%). Genetic analysis confirmed that the egusi seed trait is controlled by a single recessive gene (eg) and the location of the gene was mapped to 57.8 cM on linkage group (LG) 2, between markers NW0248325 and NW0250248. Four main quantitative trait loci (M-QTL) were identified for SOP in the population with the eg locus contributing 84% of the explained phenotypic variation (R2). A significant epistatic interaction (E-QTL) was identified between, the eg locus and an M-QTL on LG 9B. The present study reports the location of the eg locus responsible for the egusi seed trait in watermelon on LG 2 as well as M-QTL and E-QTL associated with SOP.


2021 ◽  
Vol 41 (7) ◽  
Author(s):  
Shuangshuang Xin ◽  
Hongli Dong ◽  
Lei Yang ◽  
Dengwen Huang ◽  
Fajing Zheng ◽  
...  

Euphytica ◽  
2004 ◽  
Vol 136 (3) ◽  
pp. 297-306 ◽  
Author(s):  
B. Tar'an ◽  
T. Warkentin ◽  
D.J. Somers ◽  
D. Miranda ◽  
A. Vandenberg ◽  
...  

2021 ◽  
Vol 41 (8) ◽  
Author(s):  
Shuangshuang Xin ◽  
Hongli Dong ◽  
Lei Yang ◽  
Dengwen Huang ◽  
Fajing Zheng ◽  
...  

1996 ◽  
Vol 93 (3) ◽  
pp. 431-439 ◽  
Author(s):  
N. F. Weeden ◽  
A. C. Russell ◽  
G. M. Timmerman-Vaughan ◽  
J. A. McCallum ◽  
T. J. Frew

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Yanjie Yao ◽  
Qingbo You ◽  
Guozhan Duan ◽  
Jianjun Ren ◽  
Shanshan Chu ◽  
...  

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