干旱区生态环境知识资源中心(Arid): Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions

Arid

DOI	10.3389/fpls.2021.765645
	Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions
	Limbalkar, Omkar Maharudra; Singh, Rajendra; Kumar, Parvesh; Nanjundan, Joghee; Parihar, Chiter Mal; Vasisth, Prashant; Yadava, Devendra Kumar; Chinnusamy, Viswanathan; Singh, Naveen
通讯作者	Singh, N (corresponding author), Indian Agr Res Inst, Indian Council Agr Res, Div Genet, New Delhi, India.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Among Brassica species, Ethiopian mustard (Brassica carinata A. Braun) is known to tolerate most abiotic stresses, including drought. Drought caused by low and erratic rainfall in semi-arid regions consistently challenges rapeseed mustard productivity. Development of B. carinata-derived lines (CDLs) in Brassica juncea (L.) Czern. nuclear background, carrying genomic segments from B. carinata, are expected to tolerate moisture deficit stress conditions. The present study was, thus, aimed to establish the phenomenon heterosis for drought tolerance and water use efficiency by evaluating 105 hybrids developed from intermating 15 CDLs in half diallel fashion. Data on 17 seed yield and yield contributing traits were recorded under two different environments, viz., irrigated and rainfed conditions. Traits under study were found to be governed by both additive and non-additive types of gene action. Average degree of dominance was higher (>2) for yield and yield contributing traits, viz., secondary branches/plant, point to first siliqua on main shoot, total siliquae/plant, 1,000-seed weight, seed yield/plant, biological yield, harvest index, and seed yield/hectare under rainfed conditions, clearly indicating that higher productivity under drought conditions can be realised through the development of hybrids. Out of 15, highly significant general combining ability (GCA) effects for seven CDLs were observed under rainfed condition. Furthermore, nine and six hybrids expressed highly significant specific combining ability (SCA) effects and > 50% heterobeltiosis for yield contributing traits under rainfed and irrigated conditions, respectively. Water use efficiency (WUE) of parental CDLs and hybrids varied from 2.05 to 2.57 kg m(-3) under rainfed, while 1.10 to 1.28 kg m(-3) under irrigated conditions. Hybrids expressed higher WUE than parental lines under both water regimes. Furthermore, selection indices such as drought tolerance index (DTI) and mean relative performance (MRP) were identified to be efficient in the selection of productive CDLs and hybrids under drought conditions. Nine hybrids, identified as highly productive in the present study, can further be exploited for improving the yield of Indian mustard in drought-prone areas. Usefulness of interspecific hybridisation in the development of B. carinata-derived B. juncea lines for improving heterosis and WUE is, thus, well demonstrated through the present study.
英文关键词	Brassica juncea interspecific hybridization gene effects heterosis water use efficiency drought tolerance
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000729160000001
WOS关键词	YIELD-CONTRIBUTING TRAITS ; SPRING WHEAT CULTIVARS ; DROUGHT TOLERANCE ; COMBINING ABILITY ; ETHIOPIAN MUSTARD ; GRAIN-YIELD ; HETEROBELTIOSIS ; SELECTION ; GENOTYPES ; CROSS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373887
作者单位	[Limbalkar, Omkar Maharudra; Singh, Rajendra; Kumar, Parvesh; Vasisth, Prashant; Singh, Naveen] Indian Agr Res Inst, Indian Council Agr Res, Div Genet, New Delhi, India; [Nanjundan, Joghee] Indian Agr Res Inst, Indian Council Agr Res, Reg Stn, Wellington, India; [Parihar, Chiter Mal] Indian Agr Res Inst, Div Agron, Indian Council Agr Res, New Delhi, India; [Yadava, Devendra Kumar] Indian Council Agr Res, ADG Seeds, New Delhi, India; [Chinnusamy, Viswanathan] Indian Agr Res Inst, Div Plant Physiol, Indian Council Agr Res, New Delhi, India
推荐引用方式 GB/T 7714	Limbalkar, Omkar Maharudra,Singh, Rajendra,Kumar, Parvesh,et al. Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions[J],2021,12.
APA	Limbalkar, Omkar Maharudra.,Singh, Rajendra.,Kumar, Parvesh.,Nanjundan, Joghee.,Parihar, Chiter Mal.,...&Singh, Naveen.(2021).Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions.FRONTIERS IN PLANT SCIENCE,12.
MLA	Limbalkar, Omkar Maharudra,et al."Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions".FRONTIERS IN PLANT SCIENCE 12(2021).