Comparisons within the Rice GA 2-Oxidase Gene Family Revealed Three Dominant Paralogs and a Functional Attenuated Gene that Led to the Identification of Four Amino Acid Variants Associated with GA Deactivation Capability

Rice

Table 1 Agronomic traits comparisons between OsGA2ox7-OX transgenic lines and NT/TNG67 plants^#

Rice plants		Plant height (cm)	Heading date (DAI)	Tiller number	Panicle number	Panicle length (cm)	1000-grain weight (g)
NT/TNG67		114.0 ± 4.6^a	115.2 ± 1.2^a	14.6 ± 1.1^a	14.0 ± 2.0^a	16.5 ± 1.2^a	25.4 ± 0.6^a
Line-1	T/W	65.2 ± 1.8^b	117.8 ± 1.3^b	19.4 ± 1.8^b	18.2 ± 2.9^b	13.5 ± 0.7^b	23.3 ± 0.8^b
Line-1	T/T	61.6 ± 2.1^c	118.1 ± 1.1^b	19.6 ± 2.7^b	18.6 ± 2.4^b	13.4 ± 0.5^b	22.8 ± 1.0^b
Line-3	T/W	67.8 ± 1.3^b	117.4 ± 1.2^b	19.4 ± 2.9^b	19.0 ± 2.7^b	13.5 ± 0.5^b	22.6 ± 1.1^b
Line-3	T/T	62.4 ± 3.3^c	118.3 ± 1.3^b	20.2 ± 2.8^b	19.6 ± 2.7^b	14.3 ± 0.7^b	23.5 ± 0.6^b

The different letters indicate significant differences between samples according to the Turkey’s HSD test (p < 0.05). NT/TNG67: rice variety TNG67; T/W heterozygous, T/T homozygous for transgene
DAI days after imbibition
^#The values are the means ± SEs (n = 5)