Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)

ABSTRACTIn this report, we investigated physiological and genetic aspect of RG5, a locus increasing the ratio of filled grain in rice (Oryza sativa L). RG5 increased the accumulation of non-structural carbohydrates (NSCs) in the body, and NSCs might contribute to the development of grains after head...

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Main Authors: Ken Ishimaru, Naoki Hirotsu, Kazuhiro Ujiie
Format: Article
Language:English
Published: Taylor & Francis Group 2024-04-01
Series:Plant Production Science
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/1343943X.2024.2330729
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author Ken Ishimaru
Naoki Hirotsu
Kazuhiro Ujiie
author_facet Ken Ishimaru
Naoki Hirotsu
Kazuhiro Ujiie
author_sort Ken Ishimaru
collection DOAJ
description ABSTRACTIn this report, we investigated physiological and genetic aspect of RG5, a locus increasing the ratio of filled grain in rice (Oryza sativa L). RG5 increased the accumulation of non-structural carbohydrates (NSCs) in the body, and NSCs might contribute to the development of grains after heading. With a chromosome segment substitution line containing ‘Kasalath’ RG5 in the genetic background of the japonica cultivar ‘Koshihikari’, RG5 might enlarge lower leaves and improve NSC supply to the sheath. Through the fine mapping using data plural mutans, we identified NBS-LRR protein (Os05g0380300) as a casual gene for expanding of lower leaves area by RG5. The single nucleotide polymorphism (SNP) of Kasalath caused a premature stop codon and lost function might increase the ratio of filled grains.
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spelling doaj.art-563a42fd462b407ea98bf8024aa7c1392024-04-22T11:30:54ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082024-04-0127215015410.1080/1343943X.2024.2330729Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)Ken Ishimaru0Naoki Hirotsu1Kazuhiro Ujiie2NARO, Institute of crop science, Tsukuba, JapanGraduate School of Life Sciences, Toyo University, Gunma, JapanFaculty of Life and Environmental Sciences, Shimane University, Matsue, Shimane, JapanABSTRACTIn this report, we investigated physiological and genetic aspect of RG5, a locus increasing the ratio of filled grain in rice (Oryza sativa L). RG5 increased the accumulation of non-structural carbohydrates (NSCs) in the body, and NSCs might contribute to the development of grains after heading. With a chromosome segment substitution line containing ‘Kasalath’ RG5 in the genetic background of the japonica cultivar ‘Koshihikari’, RG5 might enlarge lower leaves and improve NSC supply to the sheath. Through the fine mapping using data plural mutans, we identified NBS-LRR protein (Os05g0380300) as a casual gene for expanding of lower leaves area by RG5. The single nucleotide polymorphism (SNP) of Kasalath caused a premature stop codon and lost function might increase the ratio of filled grains.https://www.tandfonline.com/doi/10.1080/1343943X.2024.2330729Leaf sheathricesourceyield
spellingShingle Ken Ishimaru
Naoki Hirotsu
Kazuhiro Ujiie
Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
Plant Production Science
Leaf sheath
rice
source
yield
title Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
title_full Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
title_fullStr Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
title_full_unstemmed Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
title_short Physiological and candidate gene analysis of RG5, a locus associated with a higher ratio of filled grains in rice (Oryza sativa L.)
title_sort physiological and candidate gene analysis of rg5 a locus associated with a higher ratio of filled grains in rice oryza sativa l
topic Leaf sheath
rice
source
yield
url https://www.tandfonline.com/doi/10.1080/1343943X.2024.2330729
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