TY  - JOUR
AU  - Pariyar, Shree R.
AU  - Nagel, Kerstin A.
AU  - Lentz, Jonas
AU  - Galinski, Anna
AU  - Wilhelm, Jens
AU  - Putz, Alexander
AU  - Adels, Sascha
AU  - Heinz, Kathrin
AU  - Frohberg, Claus
AU  - Watt, Michelle
TI  - Variation in Root System Architecture among the Founder Parents of Two 8-way MAGIC Wheat Populations for Selection in Breeding
JO  - Agronomy
VL  - 11
IS  - 12
SN  - 2073-4395
CY  - Basel
PB  - MDPI
M1  - FZJ-2021-04749
SP  - 2452 -
PY  - 2021
AB  - Root system architecture (RSA) is a target for breeding crops with effective nutrient and water use. Breeding can use populations designed to map quantitative trait loci (QTL). Here we non-invasively phenotype roots and leaves of the 16 foundation parents of two multi-parent advanced generation inter-cross (MAGIC) populations, covering diversity in spring (CSIRO MAGIC) and winter (NIAB MAGIC) wheats. RSA components varied after 16 days in the upgraded, paper-based imaging platform, GrowScreen-PaGe: lateral root length 2.2 fold; total root length, 1.9 fold; and seminal root angle 1.2 fold. RSA components total and lateral root length had the highest root heritabilities (H2) (H2 = 0.4 for CSIRO and NIAB parents) and good repeatability (r = 0.7) in the GrowScreen-PaGe. These can be combined with leaf length (H2 = 0.8 CSIRO; 0.7 NIAB) and number (H2 = 0.6 CSIRO; 0.7 NIAB) to identify root and shoot QTL to breed for wheats with vigorous RSA and shoot growth at establishment, a critical phase for crop productivity. Time resolved phenotyping of MAGIC wheats also revealed parents to cross in future for growth rate traits (fastest: Robigus–NIAB and AC Barrie–CSIRO; slowest Rialto–NIAB and G204 Xiaoyan54–CSIRO) and root: shoot allocation traits (fast growers grew roots, notably laterals, quicker than leaves, compared to slow growers).
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000743293700001
DO  - DOI:10.3390/agronomy11122452
UR  - https://juser.fz-juelich.de/record/903020
ER  -