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QTL mapping for important horticultural traits in pepper (Capsicum annuum L.)

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Title QTL mapping for important horticultural traits in pepper (Capsicum annuum L.)
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Creator Neeraj Dwivedi, Rajesh Kumar, Rajneesh Paliwal, Uttam Kumar, Sanjeet Kumar, Major Singh, Rakesh Kumar Singh
 
Subject Capsicum, Molecular markers, QTL mapping, Yield traits
 
Description Not Available
Quantitative trait loci (QTLs) for plant height (PHT) and other yield-related traits including number of fruits
per plant (NFP), ten fruits weight (TFW), fruit length (FL), fruit width (FW), total fruit weight (ToFW) and pericarp thickness (PT) were mapped in intraspecific advanced recombinant inbred line (RIL) populations of pepper. The RILs were evaluated for 2 years (F8 and F9) for plant height and seven other yield-related traits. Three types of molecular markers; simple sequence repeats (SSR), sequenced characterized amplified region (SCAR) and random amplified polymorphic DNA (RAPD)—were used to generate linkage maps. A total of 10 QTLs for yield-related traits were mapped on four linkage groups (LG). QTLs for plant height were mapped on LG5. The phenotypic contribution of these QTLs ranged from 8 % to 51 % in mean over environments. Out of 10 QTLs detected, nine were stable in both environments except the QTL for fruit length (Qfl.iivr.3.4) on LG3. The five QTLs; Qfw.iivr-2.1, Qtfw.iivr-2.1, Qtofw.iivr-2.1, Qnfp.iivr-2.1 and Qpt.iivr-2.1 were on the samemarker interval on LG2 and one QTL, Qtofw.iivr-3.1 were tightly linked on LG3, which suggests that these genomic regions play an important role in enhancing pepper production. The genomic regions of all stable QTLs identified may serve as potential target regions for fine mapping and development of molecular markers for manipulation of yield and morphological traits in pepper.
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Date 2021-07-19T16:14:25Z
2021-07-19T16:14:25Z
2013-11-29
 
Type Research Paper
 
Identifier Not Available
0974-1275
http://krishi.icar.gov.in/jspui/handle/123456789/48910
 
Language English
 
Relation Not Available;
 
Publisher Springer