Please use this identifier to cite or link to this item: http://223.31.159.10:8080/jspui/handle/123456789/766
Title: A repeat length variation in myo-inositol monophosphatase gene contributes to seed size trait in chickpea
Authors: Dwivedi, Vikas
Parida, Swarup K.
Chattopadhyay, Debasis
Keywords: chickpea
myo-inositol
monophosphatase gene
Cicer arietinum L.
Issue Date: 2017
Publisher: Nature Publishing Group
Citation: Scientific Reports, 7(1): 4764.
Abstract: Chickpea (Cicer arietinum L.) is the third most important food legume crop. Seed size is the most economically important trait for chickpea. To understand the genetic regulation of seed size in chickpea, the present study established a three-way association of CT repeat length variation of a simple sequence repeat (SSR) in myo-inositol monophosphatase gene (CaIMP) with seed weight and phytic acid content by large scale validation and genotyping in a set of genetically diverse germplasm accessions and two reciprocal intra-specific mapping populations. Germplasms and mapping individuals with CT repeat-length expansion in the 5' untranslated region of CaIMP exhibited a pronounced increase in CaIMP protein level, enzymatic activity, seed-phytate content and seed weight. A chickpea transient expression system demonstrated this repeat-length variation influenced the translation of CaIMP mRNA, apparently by facilitating translation initiation. Our analyses proposed that the SSR marker derived from 5' UTR of a CaIMP gene is a promising candidate for selection of seed size/weight for agronomic trait improvement of chickpea.
Description: Accepted date: 26 May 2017
URI: http://59.163.192.83:8080/jspui/handle/123456789/766
ISSN: 2045-2322
Appears in Collections:Institutional Publications

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