scholarly journals Association Mapping of Four Important Traits Using the USDA Rice Mini-Core Collection

10.5772/56830 ◽  
2014 ◽  
Author(s):  
Wengui Yan ◽  
Aaron Jackson ◽  
Melissa Jia ◽  
Wei Zhou ◽  
Haizheng Xiong ◽  
...  
Keyword(s):  
Association Mapping ◽  
Core Collection ◽  
Mini Core Collection

scholarly journals Association mapping of maturity and plant height using SNP markers with the sorghum mini core collection

2013 ◽  
Vol 126 (8) ◽  
pp. 2003-2015 ◽  
Author(s):  
Hari D. Upadhyaya ◽  
Yi-Hong Wang ◽  
C. L. L. Gowda ◽  
Shivali Sharma
Keyword(s):  
Association Mapping ◽  
Plant Height ◽  
Core Collection ◽  
Snp Markers ◽  
Mini Core Collection

scholarly journals Erratum to: Association mapping of maturity and plant height using SNP markers with the sorghum mini core collection

2014 ◽  
Vol 127 (6) ◽  
pp. 1461-1461
Author(s):  
Hari D. Upadhyaya ◽  
Yi-Hong Wang ◽  
C. L. L. Gowda ◽  
Shivali Sharma
Keyword(s):  
Association Mapping ◽  
Plant Height ◽  
Core Collection ◽  
Snp Markers ◽  
Mini Core Collection

scholarly journals Genetic Variation And Association Mapping of Phenolic, Flavonoid Content And Antioxidant Capacity In USDA Rice Mini-Core Collection

2021 ◽  
Author(s):  
Qingzhu Li ◽  
Yongyi Ge ◽  
Lily Yan Wang ◽  
Kehu Li
Keyword(s):  
Association Mapping ◽  
Antioxidant Capacity ◽  
Core Collection ◽  
Phenolic Content ◽  
Total Phenolics ◽  
Genotypic Variation ◽  
Genotypic Diversity ◽  
Flavonoid Content ◽  
Mini Core Collection ◽  
Genome Wide

Abstract Genotypic diversity of total phenolics, flavonoid content and antioxidant capacity in the USDA rice mini-core collection was analyzed. Wide genotypic variation was found in total phenolics, flavonoid content and ABTS antioxidant capacity. Genome-wide association mapping between the three antioxidant traits and 155 SSR markers was conducted using Q + K model which takes both population structure (Q) and relative kinship (K) into consideration. A total of 23 marker trait association were identified with markers from Rc gene showed the strongest association with the three antioxidant traits. Rid12, RM484, RM162, RM5371 were commonly detected for phenolic content, flavonoids content and antioxidant capacity.

scholarly journals Association mapping of height and maturity across five environments using the sorghum mini core collection

Genome ◽  
2012 ◽  
Vol 55 (6) ◽  
pp. 471-479 ◽  
Author(s):  
Hari D. Upadhyaya ◽  
Yi-Hong Wang ◽  
Shivali Sharma ◽  
Sube Singh
Keyword(s):  
Association Mapping ◽  
Core Collection ◽  
Molecular Breeding ◽  
Biomass Yield ◽  
Biomass Productivity ◽  
Energy Crop ◽  
Mapping Technique ◽  
Polymorphic Markers ◽  
Mini Core Collection ◽  
Simple Sequence

Sorghum is a potential energy crop thanks to its high biomass productivity and low input. Biomass yield in sorghum is defined by height and maturity. To develop molecular breeding tools for genetic improvement of these two traits, we have identified simple sequence repeat markers linked to height and maturity using a pool-based association mapping technique. The sorghum mini core collection was evaluated across five environments for height and maturity. Seven tall and seven short accessions were selected based on their height in all environments. Likewise, six early- and 10 late-maturing accessions were selected mostly based on their maturity in two post-rainy seasons. Two additional height pools were constructed based on phenotypes in one environment. The three pairs of pools were screened with 703 SSR markers and 39 polymorphic markers were confirmed by individual genotyping. Association mapping of the 39 markers with 242 accessions from the mini core collection identified five markers associated with maturity or height. All were clustered on chromosomes 6, 9, and 10 with previously mapped height and maturity markers or QTLs. One marker associated with both height and maturity was 84 kb from recently cloned Ma1. These markers will lay a foundation for identifying additional height and maturity genes in sorghum.

scholarly journals Molecular and genetic dissection of the USDA rice mini-core collection using high-density SNP markers

Plant Science ◽  
2021 ◽  
Vol 308 ◽  
pp. 110910
Author(s):  
Jian-Min Song ◽  
Muhammad Arif ◽  
Yan Zi ◽  
Sing-Hoi Sze ◽  
Meiping Zhang ◽  
...  
Keyword(s):  
Core Collection ◽  
Snp Markers ◽  
High Density ◽  
Genetic Dissection ◽  
Mini Core Collection

Design of a Brassica rapa core collection for association mapping studiesThis article is one of a selection of papers from the conference “Exploiting Genome-wide Association in Oilseed Brassicas: a model for genetic improvement of major OECD crops for sustainable farming”.

Genome ◽  
2010 ◽  
Vol 53 (11) ◽  
pp. 884-898 ◽  
Author(s):  
Jianjun Zhao ◽  
Anna Artemyeva ◽  
Dunia Pino Del Carpio ◽  
Ram Kumar Basnet ◽  
Ningwen Zhang ◽  
...  
Keyword(s):  
Association Mapping ◽  
Flowering Time ◽  
Brassica Rapa ◽  
Core Collection ◽  
Field Experiments ◽  
Research Centre ◽  
Candidate Gene Approach ◽  
Core Collections ◽  
Genome Wide ◽  
Using Data

A Brassica rapa collection of 239 accessions, based on two core collections representing different morphotypes from different geographical origins, is presented and its use for association mapping is illustrated for flowering time. We analyzed phenotypic variation of leaf and seed pod traits, plant architecture, and flowering time using data collected from three field experiments and evaluated the genetic diversity with a set of SSR markers. The Wageningen University and Research Centre (WUR) and the Vavilov Research Institute of Plant Industry (VIR) core collections had similar representations of most morphotypes, as illustrated by the phenotypic and genetic variation within these groups. The analysis of population structure revealed five subgroups in the collection, whereas previous studies of the WUR core collection indicated four subgroups; the fifth group identified consisted mainly of oil accessions from the VIR core collection, winter oils from Pakistan, and a number of other types. A very small group of summer oils is described, that is not related to other oil accessions. A candidate gene approach was chosen for association mapping of flowering time with a BrFLC1 biallelic CAPS marker and a BrFLC2 multiallelic SSR marker. The two markers were significantly associated with flowering time, but their effects were confined to certain morphotypes and (or) alleles. Based on these results, we discuss the optimal design for an association mapping population and the need to fix the heterogeneous accessions to facilitate phenotyping and genotyping.

scholarly journals Genetic variation of maturity groups and four E genes in the Chinese soybean mini core collection

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0172106 ◽  
Author(s):  
Jicun Li ◽  
Xiaobo Wang ◽  
Wenwen Song ◽  
Xinyang Huang ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Core Collection ◽  
Mini Core Collection ◽  
Maturity Groups
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