High-density linkage map construction and QTL analyses for fiber quality, yield and morphological traits using CottonSNP63K array in upland cotton (Gossypium hirsutum L.)

Table 3 Correlation analysis between the phenotypic traits in the RIL population evaluated in the field at Central Crops Research Station, Clayton, NC across 2 years (2016 and 2017)

Trait	MIC^a	UHM	UI	STR	ELO	SFC	BW	LP	SI	LI	PH^b
UHM	−0.36^d
UI	−0.28^d	0.82^d
STR	0.18	−0.12	−0.08
ELO	0.3^d	−0.62^d	−0.51^d	− 0.2^c
SFC	0.24^d	−0.79^d	− 0.93^d	0.1	0.46^d
BW	0.12	0.29^d	0.18	0.21^c	−0.23^c	− 0.13
LP	0.28^d	0.25^d	0.11	−0.27^d	0.09	−0.09	0.46^d
SI	−0.06	0.12	0.19^c	0.32^d	−0.17	−0.15	0.37^d	−0.04
LI	0.21^c	0.3^d	0.18	−0.1	0	− 0.14	0.61^d	0.89^d	0.4^d
PH	−0.06	−0.13	− 0.12	0.21^c	− 0.11	0.11	− 0.25^c	−0.36^d	0.21^c	−0.22^c
FG	−0.14	0.27^d	0.2^c	−0.09	−0.11	− 0.18	0.46^d	0.31^d	0.32^d	0.42^d	−0.2

^a MIC micronaire, UHM upper half mean length, UI uniformity index, STR fiber strength, ELO fiber elongation, SFC short fiber content, BW boll weight, LP lint percentage, SI seed index, LI lint index, PH plant height, FG fuzziness grade of seed
^b PH used only year 2017 data
^c 0.05 significance level; ^d 0.01 significance level

ISSN: 1471-2164