干旱区生态环境知识资源中心(Arid): Introgression of QTLs for Drought Tolerance into Farmers' Preferred Sorghum Varieties

Arid

DOI	10.3390/agriculture11090883
	Introgression of QTLs for Drought Tolerance into Farmers' Preferred Sorghum Varieties
	Mwamahonje, Andekelile; Eleblu, John Saviour Yaw; Ofori, Kwadwo; Feyissa, Tileye; Deshpande, Santosh; Garcia-Oliveira, Ana Luisa; Bohar, Rajaguru; Kigoni, Milcah; Tongoona, Pangirayi
通讯作者	Mwamahonje, A (corresponding author), Univ Ghana, Coll Basic & Appl Sci, West Africa Ctr Crop Improvement WACCI, Accra 00233, Ghana. ; Mwamahonje, A (corresponding author), Makutupora Ctr, Tanzania Agr Res Inst TARI, POB 1676, Dodoma 41026, Tanzania.
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2021
卷号	11 期号:9
英文摘要	Sorghum is a major staple food crop for the people in semi-arid areas of Africa and Asia. Post-flowering drought is a global constraint of sorghum production. The study aimed to improve stay-green (STG) characteristics of farmer-preferred sorghum varieties in Tanzania using marker-assisted backcrossing. A total of 752 individuals representing five BC2F1 populations and their parents were genotyped using previously reported KASP markers linked with STG 3A and STG 3B quantitative trait loci (QTL). In the BC2F1 populations, the maximum number of individuals with heterozygous alleles were observed in S35Pato background (37) whereas only seven individuals derived from the B35Wahi parents' background contained heterozygous alleles. Of the 30 single nucleotide polymorphism (SNP) markers, favourable alleles were observed at 18 loci in BC2F1 populations. In the BC2F1 generation, the highest (0.127 kg/panicle) grain yield was observed in the B35*NACO Mtama 1 background population. The genotypic analysis revealed the presence of favourable alleles in homozygous conditions at markers loci associated with STG 3A and STG 3B QTLs in BC2F3 populations, suggesting successful introgression of STG QTLs from the donor parents to the recurrent parents. Across water irrigation regimes, the highest (0.068 kg/panicle) mean grain weight was observed in the genotype NA316C. Therefore, our study demonstrated the utility of marker-assisted backcrossing for drought tolerance improvement of locally adapted sorghum varieties in Africa.
英文关键词	STG post-flowering drought tolerance genotyping single nucleotide polymorphism marker-assisted selection
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000699163700001
WOS关键词	STAY-GREEN ; TRAIT ; YIELD
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	International Crops Research Institute for the Semi-Arid Tropics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362399
作者单位	[Mwamahonje, Andekelile; Eleblu, John Saviour Yaw; Ofori, Kwadwo; Tongoona, Pangirayi] Univ Ghana, Coll Basic & Appl Sci, West Africa Ctr Crop Improvement WACCI, Accra 00233, Ghana; [Mwamahonje, Andekelile] Makutupora Ctr, Tanzania Agr Res Inst TARI, POB 1676, Dodoma 41026, Tanzania; [Feyissa, Tileye] Addis Ababa Univ, Inst Biotechnol, POB 1176, Addis Ababa, Ethiopia; [Deshpande, Santosh] Int Crops Res Inst Semi Arid Trop, Patancheru 502324, Andhra Pradesh, India; [Garcia-Oliveira, Ana Luisa] ICRAF, Int Maize & Wheat Improvement Ctr CIMMYT, Excellence Breeding EiB Platform, Nairobi 00621, Kenya; [Bohar, Rajaguru] CIMMYT, CGIAR Excellence Breeding Platform EiB, ICRISAT Campus, Hyderabad 502324, India; [Kigoni, Milcah] Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA
推荐引用方式 GB/T 7714	Mwamahonje, Andekelile,Eleblu, John Saviour Yaw,Ofori, Kwadwo,et al. Introgression of QTLs for Drought Tolerance into Farmers' Preferred Sorghum Varieties[J]. International Crops Research Institute for the Semi-Arid Tropics,2021,11(9).
APA	Mwamahonje, Andekelile.,Eleblu, John Saviour Yaw.,Ofori, Kwadwo.,Feyissa, Tileye.,Deshpande, Santosh.,...&Tongoona, Pangirayi.(2021).Introgression of QTLs for Drought Tolerance into Farmers' Preferred Sorghum Varieties.AGRICULTURE-BASEL,11(9).
MLA	Mwamahonje, Andekelile,et al."Introgression of QTLs for Drought Tolerance into Farmers' Preferred Sorghum Varieties".AGRICULTURE-BASEL 11.9(2021).