PMID- 36840239
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230301
IS  - 2223-7747 (Print)
IS  - 2223-7747 (Electronic)
IS  - 2223-7747 (Linking)
VI  - 12
IP  - 4
DP  - 2023 Feb 16
TI  - Identification, Fine Mapping and Application of Quantitative Trait Loci for Grain 
      Shape Using Single-Segment Substitution Lines in Rice (Oryza sativa L.).
LID - 10.3390/plants12040892 [doi]
LID - 892
AB  - Quantitative trait loci (QTLs) and HQTL (heterosis QTLs) for grain shape are two 
      major genetic factors of grain yield and quality in rice (Oryza sativa L.). 
      Although many QTLs for grain shape have been reported, only a few are applied in 
      production. In this study, 54 QTLs for grain shape were detected on 10 
      chromosomes using 33 SSSLs (single-segment substitution lines) and methods of 
      statistical genetics. Among these, 23 exhibited significant positive additive 
      genetic effects, including some novel QTLs, among which qTGW4-(1,2), qTGW10-2, 
      and qTGW10-3 were three QTLs newly found in this study and should be paid more 
      attention. Moreover, 26 HQTLs for grain shape were probed. Eighteen of these 
      exhibited significant positive dominant genetic effects. Thirty-three QTLs for 
      grain shape were further mapped using linkage analysis. Most of the QTLs for 
      grain shape produced pleiotropic effects, which simultaneously controlled 
      multiple appearance traits of grain shape. Linkage mapping of the F(2) population 
      derived from sub-single-segment substitution lines further narrowed the interval 
      harbouring qTGW10-3 to 75.124 kb between PSM169 and RM25753. The candidate gene 
      was identified and could be applied to breeding applications by molecular 
      marker-assisted selection. These identified QTLs for grain shape will offer 
      additional insights for improving grain yield and quality in rice breeding.
FAU - Wang, Xiaoling
AU  - Wang X
AUID- ORCID: 0000-0003-3328-230X
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
AD  - Guangdong Provincial Key Laboratory of Plant Molecular Breeding, College of 
      Agriculture, South China Agricultural University, Guangzhou 510642, China.
AD  - Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in 
      Off-Season Reproduction Regions, Institute of Tropical Bioscience and 
      Biotechnology & San Ya Research Institute, Chinese Academy of Tropical 
      Agricultural Sciences, Haikou 571101, China.
FAU - Li, Xia
AU  - Li X
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Luo, Xin
AU  - Luo X
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Tang, Shusheng
AU  - Tang S
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Wu, Ting
AU  - Wu T
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Wang, Zhiquan
AU  - Wang Z
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Peng, Zhiqin
AU  - Peng Z
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Xia, Qiyu
AU  - Xia Q
AD  - Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in 
      Off-Season Reproduction Regions, Institute of Tropical Bioscience and 
      Biotechnology & San Ya Research Institute, Chinese Academy of Tropical 
      Agricultural Sciences, Haikou 571101, China.
FAU - Yu, Chuanyuan
AU  - Yu C
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
FAU - Xiao, Yulong
AU  - Xiao Y
AD  - National Engineering Research Center of Rice (Nanchang), Rice Research Institute, 
      Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China.
LA  - eng
GR  - JXSNKYJCRC202312/Jiangxi Provincial Talent Fund - Basic Research Project/
GR  - 32060475/National Natural Science Foundation of China/
GR  - JXXTCX202201/Jiangxi Modern Agricultural Scientific Research Collaborative 
      Innovation Special Project/
GR  - JXSNKYJCRC202202/Basic Research and Leading Talent Nurturing Program/
GR  - 2021-01/Innovation Platform for Academy of Hainan Province/
PT  - Journal Article
DEP - 20230216
PL  - Switzerland
TA  - Plants (Basel)
JT  - Plants (Basel, Switzerland)
JID - 101596181
PMC - PMC9966618
OTO - NOTNLM
OT  - grain shape
OT  - quantitative trait locus (QTL)
OT  - rice
OT  - single-segment substitution line (SSSL)
COIS- The authors declare no conflict of interest.
EDAT- 2023/02/26 06:00
MHDA- 2023/02/26 06:01
PMCR- 2023/02/16
CRDT- 2023/02/25 04:25
PHST- 2022/11/26 00:00 [received]
PHST- 2023/02/11 00:00 [revised]
PHST- 2023/02/13 00:00 [accepted]
PHST- 2023/02/25 04:25 [entrez]
PHST- 2023/02/26 06:00 [pubmed]
PHST- 2023/02/26 06:01 [medline]
PHST- 2023/02/16 00:00 [pmc-release]
AID - plants12040892 [pii]
AID - plants-12-00892 [pii]
AID - 10.3390/plants12040892 [doi]
PST - epublish
SO  - Plants (Basel). 2023 Feb 16;12(4):892. doi: 10.3390/plants12040892.