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022 _a0721-7714
022 _a1432-203X (Online)
024 8 _ahttps://doi.org/10.1007/s00299-021-02810-5
040 _aMX-TxCIM
041 _aeng
100 0 _aShuen-Fang Lo
_925675
245 1 0 _aCloser vein spacing by ectopic expression of nucleotide-binding and leucine-rich repeat proteins in rice leaves
260 _aBerlin (Germany) :
_bSpringer,
_c2022.
500 _aPeer review
500 _aOpen Access
520 _aKey message: Elevated expression of nucleotide-binding and leucine-rich repeat proteins led to closer vein spacing and higher vein density in rice leaves. Abstract: To feed the growing global population and mitigate the negative effects of climate change, there is a need to improve the photosynthetic capacity and efficiency of major crops such as rice to enhance grain yield potential. Alterations in internal leaf morphology and cellular architecture are needed to underpin some of these improvements. One of the targets is to generate a “Kranz-like” anatomy in leaves that includes decreased interveinal spacing close to that in C4 plant species. As C4 photosynthesis has evolved from C3 photosynthesis independently in multiple lineages, the genes required to facilitate C4 may already be present in the rice genome. The Taiwan Rice Insertional Mutants (TRIM) population offers the advantage of gain-of-function phenotype trapping, which accelerates the identification of rice gene function. In the present study, we screened the TRIM population to determine the extent to which genetic plasticity can alter vein density (VD) in rice. Close vein spacing mutant 1 (CVS1), identified from a VD screening of approximately 17,000 TRIM lines, conferred heritable high leaf VD. Increased vein number in CVS1 was confirmed to be associated with activated expression of two nucleotide-binding and leucine-rich repeat (NB-LRR) proteins. Overexpression of the two NB-LRR genes individually in rice recapitulates the high VD phenotype, due mainly to reduced interveinal mesophyll cell (M cell) number, length, bulliform cell size and thus interveinal distance. Our studies demonstrate that the trait of high VD in rice can be achieved by elevated expression of NB-LRR proteins limited to no yield penalty.
546 _aText in English
650 7 _aLeaf veins
_2AGROVOC
_925676
650 7 _aProteins
_2AGROVOC
_91224
650 7 _aRice
_2AGROVOC
_91243
700 1 _aChatterjee, J.
_925677
700 1 _8001712108
_aBiswal, A.K.
_gFormerly Genetic Resources Program
_918209
700 0 _aI. Lun Liu
_925678
700 0 _aYu-Pei Chang
_925679
700 0 _aPei-Jing Chen
_925680
700 1 _aWanchana, S.
_925681
700 1 _aElmido-Mabilangan, A.
_925682
700 1 _aNepomuceno, R.A.
_925683
700 1 _aBandyopadhyay, A.
_8001714002
_gGenetic Resources Program
_925685
700 0 _aYue-Ie Hsing
_925684
700 1 _aQuick, W.P.
_919857
773 0 _tPlant Cell Reports
_dBerlin (Germany) : Springer, 2022.
_x0721-7714
_gv. 41, no. 2, p. 319-335
_wG79234
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/21759
942 _cJA
_n0
_2ddc
999 _c64664
_d64656