scholarly journals Linkage and regional association analysis reveal two new tightly-linked major-QTLs for pod number and seed number per pod in rapeseed (Brassica napus L.)

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Jiaqin Shi ◽  
Jiepeng Zhan ◽  
Yuhua Yang ◽  
Jiang Ye ◽  
Shunmou Huang ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Association Analysis ◽  
Seed Number ◽  
Brassica Napus L ◽  
Major Qtls ◽  
Regional Association ◽  
Pod Number ◽  
Regional Association Analysis

scholarly journals INTRA-PLANT VARIATION IN NUMBER OF SEEDS PER POD AND SEED WEIGHT IN BRASSICA NAPUS ’TOWER’

1979 ◽  
Vol 59 (4) ◽  
pp. 959-962 ◽  
Author(s):  
JOHN M. CLARKE
Keyword(s):  
Brassica Napus ◽  
Seed Weight ◽  
Field Trials ◽  
Lower Branch ◽  
Seed Number ◽  
Brassica Napus L ◽  
Plant Variation ◽  
Developing Seeds ◽  
General Decline ◽  
Number Of Seeds

Field trials were conducted at Saskatoon in 1976, and at Swift Current in 1977, to investigate intra-plant variation in number of seeds per pod and seed weight in Brassica napus L. ’Tower’. Number of pods was greatest on the main raceme, least on the lowest branch. Seed number per pod was also highest on the main raceme, as was seed weight. In 1976, number of seeds per pod and seed weight were higher in pods from the lower half of the main raceme than from those on the upper half. A study of the trends in number of seeds per pod between the end of flowering and maturity revealed a general decline in number of seeds per pod and an increase in the number of aborted seeds at the lower branch positions. At the end of flowering, pods from all branch positions had equal numbers of developing seeds.

Use of Genotypes of Common Variants for Genome-Wide Regional Association Analysis

2018 ◽  
Vol 54 (2) ◽  
pp. 250-258
Author(s):  
A. V. Kirichenko ◽  
I. V. Zorkoltseva ◽  
N. M. Belonogova ◽  
T. I. Axenovich
Keyword(s):  
Association Analysis ◽  
Common Variants ◽  
Regional Association ◽  
Genome Wide ◽  
Regional Association Analysis

scholarly journals QTL Analysis of Five Silique-Related Traits in Brassica napus L. Across Multiple Environments

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaozhen Zhao ◽  
Kunjiang Yu ◽  
Chengke Pang ◽  
Xu Wu ◽  
Rui Shi ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Gene Networks ◽  
Reproductive Organ ◽  
High Yield ◽  
Potential Candidate ◽  
Seed Number ◽  
Brassica Napus L ◽  
Functional Annotations ◽  
Multiple Environments ◽  
Silique Length

As an important physiological and reproductive organ, the silique is a determining factor of seed yield and a breeding target trait in rapeseed (Brassica napus L.). Genetic studies of silique-related traits are helpful for rapeseed marker-assisted high-yield breeding. In this study, a recombinant inbred population containing 189 lines was used to perform a quantitative trait loci (QTLs) analysis for five silique-related traits in seven different environments. As a result, 120 consensus QTLs related to five silique-related traits were identified, including 23 for silique length, 25 for silique breadth, 29 for silique thickness, 22 for seed number per silique and 21 for silique volume, which covered all the chromosomes, except C5. Among them, 13 consensus QTLs, one, five, two, four and one for silique length, silique breadth, silique thickness, seed number per silique and silique volume, respectively, were repeatedly detected in multiple environments and explained 4.38–13.0% of the phenotypic variation. On the basis of the functional annotations of Arabidopsis homologous genes and previously reported silique-related genes, 12 potential candidate genes underlying these 13 QTLs were screened and found to be stable in multiple environments by analyzing the re-sequencing results of the two parental lines. These findings provide new insights into the gene networks affecting silique-related traits at the QTL level in rapeseed.

scholarly journals Regional Association Analysis of MetaQTLs Delineates Candidate Grain Size Genes in Rice

2017 ◽  
Vol 8 ◽  
Author(s):  
Anurag V. Daware ◽  
Rishi Srivastava ◽  
Ashok K. Singh ◽  
Swarup K. Parida ◽  
Akhilesh K. Tyagi
Keyword(s):  
Grain Size ◽  
Association Analysis ◽  
Regional Association ◽  
Regional Association Analysis

scholarly journals Genetic and Cytological Analyses of the Natural Variation of Seed Number per Pod in Rapeseed (Brassica napus L.)

2017 ◽  
Vol 8 ◽  
Author(s):  
Yuhua Yang ◽  
Ying Wang ◽  
Jiepeng Zhan ◽  
Jiaqin Shi ◽  
Xinfa Wang ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Natural Variation ◽  
Seed Number ◽  
Brassica Napus L
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