Accounting for the impact of genotype and environment on variation in leaf respiration of wheat in Mexico and Australia

被引：1

作者：

Gaju, Oorbessy ^{[1
,2
]}

Bloomfield, Keith J. ^{[3
]}

Negrini, Anna C. A. ^{[1
,4
]}

Bowerman, Andrew F. ^{[1
,4
]}

Cullerne, Darren ^{[4
]}

Posch, Bradley Cooper ^{[1
,4
]}

Bryant, Callum ^{[1
]}

Fan, Yuzhen ^{[1
,4
]}

Spence, Matthew ^{[1
,5
]}

Stone, Bethany ^{[1
,4
]}

Gilliham, Matthew ^{[6
,7
]}

Furbank, Robert T. ^{[8
]}

Molero, Gemma ^{[9
,10
]}

Pogson, Barry J. ^{[1
,4
]}

Mathews, Ky ^{[11
]}

Millar, A. Harvey ^{[12
,13
]}

Pearson, Allison L. ^{[6
,7
]}

Reynolds, Matthew P. ^{[9
]}

Stroeher, Elke ^{[14
]}

Taylor, Nicolas L. ^{[12
,13
]}

Turnbull, Matthew H. ^{[15
]}

Atkin, Owen K. ^{[1
,4
]}

机构：

[1] Australian Natl Univ, Arc Ctr Excellence Plant Energy Biol, Res Sch Biol, Canberra, ACT 2601, Australia

[2] Univ Lincoln, Lincoln Inst Agrifood Technol, Coll Sci, Lincoln LN2 2LG, England

[3] Imperial Coll London, Georgina Mace Ctr Living Planet, Dept Life Sci, Silwood Pk Campus,Buckhurst Rd, Ascot SL5 7PY, England

[4] Australian Natl Univ, Res Sch Biol, Div Plant Sci, Canberra, ACT 2601, Australia

[5] Australian Natl Univ, Res Sch Chem, Canberra, ACT 2601, Australia

[6] Univ Adelaide, Arc Ctr Excellence Plant Energy Biol, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia

[7] Univ Adelaide, Waite Res Inst, Glen Osmond, SA 5064, Australia

[8] Australian Natl Univ, ARC Ctr Excellence Translat Photosynth, Res Sch Biol, Canberra, ACT 2601, Australia

[9] Int Maize & Wheat Improvement Ctr CIMMYT, Km 45,Carretera Mexico, El Batan 56237, Texcoco, Mexico

[10] KWS Momont Rech, 7 Rue Martinval, F-59246 Mons En Pevele, France

[11] Univ Wollongong, Sch Psychol, Northfields Ave, Wollongong, NSW 2522, Australia

[12] Univ Western Australia, Sch Mol Sci, ARC Ctr Excellence Plant Energy Biol, Crawley, WA 6009, Australia

[13] Univ Western Australia, Inst Agr, Crawley, WA 6009, Australia

[14] Univ Western Australia, Ctr Microscopy Characterisat & Anal, Perth, WA, Australia

[15] Univ Canterbury, Sch Biol Sci, Christchurch 8140, New Zealand

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2024年 / 76卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

Environment; genotype; residual variance; respiration; selection; wheat; LOLIUM-PERENNE POPULATIONS; GLOBAL FOOD DEMAND; DARK RESPIRATION; THERMAL-ACCLIMATION; PLANT RESPIRATION; PROTEIN-TURNOVER; SOLAR-RADIATION; USE EFFICIENCY; MATURE LEAVES; GROWTH;

D O I：

10.1093/jxb/erae449

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

An approach to improving radiation use efficiency (RUE) in wheat is to screen for variability in rates of leaf respiration in darkness (R-dark). We used a high-throughput system to quantify variation in R-dark among a diverse range of spring wheat genotypes (301 lines) grown in two countries (Mexico and Australia) and two seasons (2017 and 2018), and in doing so quantify the relative importance of genotype (G) and environment (E) in influencing variations in leaf R-dark. Through careful design, residual (unexplained) variation represented <10% of the total observed. Up to a third of the variation in R-dark (and related traits) was under genetic control. This suggests opportunities for breeders to use R-dark as a novel selection tool. In addition, E accounted for more than half of the total variation in area-based rates of R-dark. Here, the day of measurement was crucial, suggesting that day-to-day variations in the environment influence rates of R-dark measured at a common temperature. Overall, this study provides new insights into the role G and E play in determining variation in rates of leaf R-dark of one of the most important cereal crops, with implications for future improvements in carbon use efficiency and yield.

引用

页码：1099 / 1115

页数：17

共 116 条

[1] Photosynthesis, respiration and conservative carbon use efficiency of four field grown crops [J].