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Host plant resistance genes to fusar...

Gupta, Anju.

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Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control./
作者:	Gupta, Anju.
面頁冊數:	128 p.
附註:	Adviser: Clay H. Sneller.
Contained By:	Dissertation Abstracts International63-01B.
標題:	Agriculture, Agronomy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3039475
ISBN:	0493527230

Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control.
Gupta, Anju.

Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control. - 128 p.

Adviser: Clay H. Sneller.

Thesis (Ph.D.)--The Ohio State University, 2002.

Fusarium head blight (FHB) is a devastating disease of wheat and barley. It is caused by the fungus <italic>Fusarium graminearum</italic> and related species. In recent years, it has emerged as a threatening disease for all classes of wheat worldwide. FHB has caused an overall economic loss of

ISBN: 0493527230Subjects--Topical Terms:

1018679
Agriculture, Agronomy.

Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control.
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245 1 0 $a Host plant resistance genes to fusarium head blight of wheat: Sources, inheritance and determination of genetic control.
300 $a 128 p.
500 $a Adviser: Clay H. Sneller.
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502 $a Thesis (Ph.D.)--The Ohio State University, 2002.
520 $a Fusarium head blight (FHB) is a devastating disease of wheat and barley. It is caused by the fungus <italic>Fusarium graminearum</italic> and related species. In recent years, it has emerged as a threatening disease for all classes of wheat worldwide. FHB has caused an overall economic loss of $2 .6 billion over the past six years in the United States. The state of Ohio suffered losses of $1 80 million in 1996 alone due to FHB. Severe epidemics of FHB have been occurring frequently on wheat crops in the north central United States and southern Canada due to the widespread use of conservation tillage. No chemical and biological control for the disease has been identified so far. Breeding for resistance is fairly complicated because of the quantitative nature of inheritance with few major and few minor genes for resistance.
520 $a The studies performed in this research identify new sources of resistance to FHB of wheat, map major quantitative trait loci (QTL) associated with resistant to FHB and establishes a relationship among FHB resistant germplasm using pedigree and molecular analysis.
520 $a This research identifies nineteen new FHB resistant accessions based on the screening of Yugoslavian germplasm from the USDA collection under artificial disease conditions in field and greenhouse tests over two years. These nineteen accessions belong to a completely new lineage based on pedigree information from the Germplasm Resources Information Network (GRIN).
520 $a This research also identifies three major QTLs for FHB resistance in two different partially resistant wheat cultivars, Ning7840 and Freedom. A major QTL from Ning7840 at 3BS and 3AL and a major QTL from Freedom at 2AS has been identified using simple sequence repeat markers. The allelic nature of the QTL at 3BS was found to be recessive whereas that of 2AS to be additive.
520 $a A pedigree and molecular analysis of currently available sources of resistance suggest that Sumai 3 and Ning7840 carry unique alleles for resistance to FHB at 3BS. Sumai 3 and Ning7840 are widely used sources of resistance to FHB. It also suggests that molecular markers may help in establishing the degree of relatedness in the FHB resistant germplasm. Similarities based on SSR genotyping can be used as a preliminary screen for sources of FHB resistance.
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650 4 $a Agriculture, Plant Pathology. $3 1028950
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