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Table 1 Gel permeation chromatography (GPC) parameters, relative crystallinities and infrared ratios (IR) among near-isogenic lines (NILs) a

From: Genetic Dissection and Functional Differentiation of ALKa and ALKb, Two Natural Alleles of the ALK/SSIIa Gene, Responding to Low Gelatinization Temperature in Rice

Genotype

AP1 (%)

AP2 (%)

AP1/AP2

AM (%)

Relative crystallinity (%)

1047/1022 (cm−1)

Nip(ALKa)

63.15 ± 0.50a

23.47 ± 0.10a

2.69 ± 0.03b

13.37 ± 0.50a

31.7 ± 0.21b

0.389 ± 0.001b

NIL(ALKb)

63.59 ± 1.20a

21.72 ± 0.50c

2.93 ± 0.07a

14.01 ± 0.70a

35.1 ± 0.14a

0.382 ± 0.002b

NIL(ALKc)

64.18 ± 0.50a

22.56 ± 0.30b

2.85 ± 0.03a

13.27 ± 0.70a

35.9 ± 0.14a

0.397 ± 0.001a

  1. aData represent means ± standard deviations, n = 2. AP1, AP2, and AP1/AP2 represent the relative fractions correspond to short (AP1) and long (AP2) branch chains of amylopectin, and the degree of amylopectin branching (AP1/AP2), respectively. AM represents the true amylose content (AM) as determined by gel permeation chromatography (GPC) parameters. The relative crystallinity was calculated from XRD. Ratios of 1047/1022 represents the amount of ordered starch calculated from ATR-FTIR. The small letters in each column indicate significant differences among genotypes (P < 0.05)