Construction of a high-density genetic map and QTL mapping of leaf traits and plant growth in an interspecific F1 population of Catalpa bungei × Catalpa duclouxii Dode

Table 4 The phenotypic information of C. bungei “7080”, C. duclouxii “16-PJ-3” and their F₁ Population

Traits	Male (mean)	Female (mean)	F₁ Population
Traits	Male (mean)	Female (mean)	Mean ± SD	Min	Max	Repeatability	CV (%)
LA (cm²)^a	127.99	170.63	133.41 ± 34.17	48.69	205.70	0.89	25.61
LL (cm)	17.98	19.59	17.84 ± 3.03	10.61	31.86	0.87	17.03
LW (cm)^a	12.68	15.06	13.43 ± 1.82	5.29	16.51	0.92	13.57
LP (cm)	52.83	63.79	57.57 ± 10.32	30.98	101.19	0.90	17.93
L/W	1.41	1.30	1.34 ± 0.20	0.83	2.53	0.86	15.41
PL (cm)	13.88	13.98	14.03 ± 2.97	7.46	24.22	0.94	21.19
SPAD	43.50	42.98	42.55 ± 4.76	29.84	55.88	0.91	11.18
Plant height (m)
6/30^a	1.07	1.42	1.28 ± 0.18	0.77	1.84	–	14.42
7/15^a	1.60	2.01	1.85 ± 0.23	1.11	2.51	–	12.85
7/31^a	1.92	2.42	2.22 ± 0.22	1.44	2.92	–	10.07
8/15^a	2.36	3.02	2.72 ± 0.27	1.70	3.54	–	10.15
8/31^a	2.48	3.06	2.85 ± 0.28	1.75	3.66	–	10.02
10/10^a	2.55	3.21	2.89 ± 0.29	1.78	3.75	0.92	10.20

“^a” indicates a significant difference of the measured traits between male and female parent (one-way ANOVA, P < 0.05, α = 0.05)

ISSN: 1471-2229