Comparative fiber property and transcriptome analyses reveal key genes potentially related to high fiber strength in cotton (Gossypium hirsutum L.) line MD52ne

Table 2 Correlations between bundle fiber strength and other fiber properties from the F₂ plant derived from a cross between MD52ne and MD90ne

Fiber properties	Measuring method	Sample numbers	Correlation coefficient (r)	R ²	p-value	Correlation with BFS
UHML	HVI	384	0.360	0.129	<0.0001***	Yes
MIC	HVI	384	0.108	0.012	0.0343*	Yes
MR	AFIS	380	0.169	0.029	0.001***	Yes
Fineness	AFIS	380	0.110	0.012	0.0325*	Yes
FE	HVI	384	−0.049	0.002	0.340	No

Average bundle fiber strength (BFS), fiber length (UHML), micronaire (MIC), maturity ratio (MR), fineness, and fiber elongation (FE) were calculated from five replicates of each F₂ progeny plant. Linear regression and correlation data between bundle fiber strength and other fiber properties were determined by Graphad Prism 5.0. Statistical significance was shown at the probability levels under 0.05*, and 0.001***

ISSN: 1471-2229