Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection
In the Eastern Gangetic Plain of South Asia field pea (Pisum sativum L.) is often grown as a relay crop where soil waterlogging (WL) causes germination failure. To assess if selection for WL tolerance is feasible, we studied the response to WL stress at germination stage in a recombinant inbred line...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Frontiers Media S.A.
2019-07-01
|
Series: | Frontiers in Plant Science |
Subjects: | |
Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2019.00953/full |
id |
doaj-62b974368ce54b839ca12a199581f3b6 |
---|---|
record_format |
Article |
spelling |
doaj-62b974368ce54b839ca12a199581f3b62020-11-25T01:13:25ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-07-011010.3389/fpls.2019.00953462845Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect SelectionMd Shahin Uz Zaman0Md Shahin Uz Zaman1Md Shahin Uz Zaman2Al Imran Malik3Parwinder Kaur4Parwinder Kaur5Federico Martin Ribalta6William Erskine7William Erskine8Centre for Plant Genetics and Breeding, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, AustraliaThe UWA Institute of Agriculture, The University of Western Australia, Crawley, WA, AustraliaPulses Research Centre, Bangladesh Agricultural Research Institute, Ishwardi, BangladeshCentre for Plant Genetics and Breeding, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, AustraliaCentre for Plant Genetics and Breeding, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, AustraliaThe UWA Institute of Agriculture, The University of Western Australia, Crawley, WA, AustraliaCentre for Plant Genetics and Breeding, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, AustraliaCentre for Plant Genetics and Breeding, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, AustraliaThe UWA Institute of Agriculture, The University of Western Australia, Crawley, WA, AustraliaIn the Eastern Gangetic Plain of South Asia field pea (Pisum sativum L.) is often grown as a relay crop where soil waterlogging (WL) causes germination failure. To assess if selection for WL tolerance is feasible, we studied the response to WL stress at germination stage in a recombinant inbred line (RIL) population from a bi-parental cross between WL-contrasting parents and in a diversity panel to identify extreme phenotypes, understand the genetics of WL tolerance and find traits for possible use in indirect selection. The RIL population and the diversity panel were screened to test the ability of germination under both waterlogged and drained soils. A total of 50, most WL tolerant and sensitive, genotypes from each of both the RIL and the diversity panel were further evaluated to assay testa integrity/leakage in CaSO4 solution. Morphological characterization of both populations was undertaken. A wide range of variation in the ability to germination in waterlogged soil was observed in the RIL population (6–93%) and the diversity panel (5–100%) with a high broad-sense heritability (H2 > 85%). The variation was continuously distributed indicating polygenic control. Most genotypes with a dark colored testa (90%) were WL tolerant, whereas those with a light colored testa were all WL sensitive in both the RIL population and diversity panel. Testa integrity, measured by electrical conductivity of the leakage solute, was strongly associated with WL tolerance in the RIL population (rG = −1.00) and the diversity panel (rG = −0.90). Therefore, testa integrity can be effectively used in indirect selection for WL tolerance. Response to selection for WL tolerance at germination is confidently predicted enabling the adaptation of the ancient model pea to extreme precipitation events at germination.https://www.frontiersin.org/article/10.3389/fpls.2019.00953/fullgerminationwaterlogging toleranceindirect selectionsecondary traitsPisum sp. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Md Shahin Uz Zaman Md Shahin Uz Zaman Md Shahin Uz Zaman Al Imran Malik Parwinder Kaur Parwinder Kaur Federico Martin Ribalta William Erskine William Erskine |
spellingShingle |
Md Shahin Uz Zaman Md Shahin Uz Zaman Md Shahin Uz Zaman Al Imran Malik Parwinder Kaur Parwinder Kaur Federico Martin Ribalta William Erskine William Erskine Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection Frontiers in Plant Science germination waterlogging tolerance indirect selection secondary traits Pisum sp. |
author_facet |
Md Shahin Uz Zaman Md Shahin Uz Zaman Md Shahin Uz Zaman Al Imran Malik Parwinder Kaur Parwinder Kaur Federico Martin Ribalta William Erskine William Erskine |
author_sort |
Md Shahin Uz Zaman |
title |
Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection |
title_short |
Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection |
title_full |
Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection |
title_fullStr |
Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection |
title_full_unstemmed |
Waterlogging Tolerance at Germination in Field Pea: Variability, Genetic Control, and Indirect Selection |
title_sort |
waterlogging tolerance at germination in field pea: variability, genetic control, and indirect selection |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Plant Science |
issn |
1664-462X |
publishDate |
2019-07-01 |
description |
In the Eastern Gangetic Plain of South Asia field pea (Pisum sativum L.) is often grown as a relay crop where soil waterlogging (WL) causes germination failure. To assess if selection for WL tolerance is feasible, we studied the response to WL stress at germination stage in a recombinant inbred line (RIL) population from a bi-parental cross between WL-contrasting parents and in a diversity panel to identify extreme phenotypes, understand the genetics of WL tolerance and find traits for possible use in indirect selection. The RIL population and the diversity panel were screened to test the ability of germination under both waterlogged and drained soils. A total of 50, most WL tolerant and sensitive, genotypes from each of both the RIL and the diversity panel were further evaluated to assay testa integrity/leakage in CaSO4 solution. Morphological characterization of both populations was undertaken. A wide range of variation in the ability to germination in waterlogged soil was observed in the RIL population (6–93%) and the diversity panel (5–100%) with a high broad-sense heritability (H2 > 85%). The variation was continuously distributed indicating polygenic control. Most genotypes with a dark colored testa (90%) were WL tolerant, whereas those with a light colored testa were all WL sensitive in both the RIL population and diversity panel. Testa integrity, measured by electrical conductivity of the leakage solute, was strongly associated with WL tolerance in the RIL population (rG = −1.00) and the diversity panel (rG = −0.90). Therefore, testa integrity can be effectively used in indirect selection for WL tolerance. Response to selection for WL tolerance at germination is confidently predicted enabling the adaptation of the ancient model pea to extreme precipitation events at germination. |
topic |
germination waterlogging tolerance indirect selection secondary traits Pisum sp. |
url |
https://www.frontiersin.org/article/10.3389/fpls.2019.00953/full |
work_keys_str_mv |
AT mdshahinuzzaman waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT mdshahinuzzaman waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT mdshahinuzzaman waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT alimranmalik waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT parwinderkaur waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT parwinderkaur waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT federicomartinribalta waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT williamerskine waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection AT williamerskine waterloggingtoleranceatgerminationinfieldpeavariabilitygeneticcontrolandindirectselection |
_version_ |
1725162466956017664 |