東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Identification of Genes/Genomic Regi...

Bhatta, Madhav.

Linked to FindBook

Google Book

Amazon

博客來

Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat./
Author:	Bhatta, Madhav.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	201 p.
Notes:	Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
Contained By:	Dissertation Abstracts International80-04B(E).
Subject:	Plant sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10978424
ISBN:	9780438662186

Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat.
Bhatta, Madhav.

Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 201 p.

Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.

Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2018.

Synthetic hexaploid wheat (SHW; 2n=6x=42, AABBDD, Triticum aestivum L.) is produced from an interspecific cross between durum wheat (2n=4x=28, AABB, T. turgidum L.) and goat grass (2n=2x=14, DD, Aegilops tauschii Coss.). It is reported to have a considerable amount of genetic diversity and is a potential source of novel alleles controlling abiotic and biotic stresses resistance and improving wheat quality. Therefore, the first study was to understand the genetic diversity and population structure of SHWs and compare the genetic diversity of SHWs with elite bread wheat (BW) cultivars. The result of this study identified a wide range of genetic diversity within the SHWs. The genetic diversity of the ABD and D-genome of SHWs were 50% and 88.2%, respectively, higher than that found on the respective genome in a sample of elite BW cultivars. The second study was to identify novel genomic regions and underlying genes associated with grain yield and yield-related traits under two drought-stressed environments. This study identified 90 novel genomic regions and haplotype blocks associated with improving grain yield and yield-related traits with phenotypic variance explained of up to 32.3%. The third study was to identify common bunt resistance genotypes, genomic regions and underlying genes conferring resistance to common bunt. This study identified 29 resistant SHWs and 15 genomic regions (five were novel) conferring resistance to common bunt. The fourth study to explore the genetic variation of 10-grain minerals (Ca, Cd, Co, Cu, Fe, Li, Mg, Mn, Ni, and Zn) and grain protein concentration (GPC); identify marker-trait associations and candidate genes associated with grain minerals using a genome-wide association study (GWAS). A wide range of genetic variation identified within SHWs for GPC and grain mineral concentrations. A GWAS identified 92 genomic regions (60 were novel and 40 were within genes) associated with increasing beneficial grain mineral concentration and decreasing concentration of toxic compound such as Cd. The results from this research will be valuable for broadening the genetic base of wheat and could assist in further understanding of the genetic architecture of traits under biotic and abiotic stresses.

ISBN: 9780438662186Subjects--Topical Terms:

3173832
Plant sciences.

Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat.
LDR:03287nmm a2200313 4500 001 2203085
005 20190528122952.5
008 201008s2018 ||||||||||||||||| ||eng d
020 $a 9780438662186
035 $a (MiAaPQ)AAI10978424
035 $a (MiAaPQ)unl:13156
035 $a AAI10978424
040 $a MiAaPQ $c MiAaPQ
100 1 $a Bhatta, Madhav. $3 3429874
245 1 0 $a Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 201 p.
500 $a Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
500 $a Adviser: P. Stephen Baenziger.
502 $a Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2018.
520 $a Synthetic hexaploid wheat (SHW; 2n=6x=42, AABBDD, Triticum aestivum L.) is produced from an interspecific cross between durum wheat (2n=4x=28, AABB, T. turgidum L.) and goat grass (2n=2x=14, DD, Aegilops tauschii Coss.). It is reported to have a considerable amount of genetic diversity and is a potential source of novel alleles controlling abiotic and biotic stresses resistance and improving wheat quality. Therefore, the first study was to understand the genetic diversity and population structure of SHWs and compare the genetic diversity of SHWs with elite bread wheat (BW) cultivars. The result of this study identified a wide range of genetic diversity within the SHWs. The genetic diversity of the ABD and D-genome of SHWs were 50% and 88.2%, respectively, higher than that found on the respective genome in a sample of elite BW cultivars. The second study was to identify novel genomic regions and underlying genes associated with grain yield and yield-related traits under two drought-stressed environments. This study identified 90 novel genomic regions and haplotype blocks associated with improving grain yield and yield-related traits with phenotypic variance explained of up to 32.3%. The third study was to identify common bunt resistance genotypes, genomic regions and underlying genes conferring resistance to common bunt. This study identified 29 resistant SHWs and 15 genomic regions (five were novel) conferring resistance to common bunt. The fourth study to explore the genetic variation of 10-grain minerals (Ca, Cd, Co, Cu, Fe, Li, Mg, Mn, Ni, and Zn) and grain protein concentration (GPC); identify marker-trait associations and candidate genes associated with grain minerals using a genome-wide association study (GWAS). A wide range of genetic variation identified within SHWs for GPC and grain mineral concentrations. A GWAS identified 92 genomic regions (60 were novel and 40 were within genes) associated with increasing beneficial grain mineral concentration and decreasing concentration of toxic compound such as Cd. The results from this research will be valuable for broadening the genetic base of wheat and could assist in further understanding of the genetic architecture of traits under biotic and abiotic stresses.
590 $a School code: 0138.
650 4 $a Plant sciences. $3 3173832
650 4 $a Genetics. $3 530508
650 4 $a Biostatistics. $3 1002712
690 $a 0479
690 $a 0369
690 $a 0308
710 2 $a The University of Nebraska - Lincoln. $b Agronomy. $3 1029981
773 0 $t Dissertation Abstracts International $g 80-04B(E).
790 $a 0138
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10978424