Journal article
New insights into the evolution of wheat avenin-like proteins in wild emmer wheat (Triticum dicoccoides)
Proceedings of the National Academy of Sciences, Vol.115(52), pp.13312-13317
2018
Abstract
Fifteen full-length wheat grain avenin-like protein coding genes (TaALP) were identified on chromosome arms 7AS, 4AL, and 7DS of bread wheat with each containing five genes. Besides the a- and b-type ALPs, a c type was identified in the current paper. Both a and b types have two subunits, named x and y types. The five genes on each of the three chromosome arms consisted of two x-type genes, two y-type genes, and one c-type gene. The a-type genes were typically of 520 bp in length, whereas the b types were of 850 bp in length, and the c type was of 470 bp in length. The ALP gene transcript levels were significantly up-regulated in Blumeria graminis f. sp. tritici (Bgt)-infected wheat grain caryopsis at early grain filling. Wild emmer wheat [(WEW), Triticum dicoccoides] populations were focused on in our paper to identify allelic variations of ALP genes and to study the influence of natural selection on certain alleles. Consequently, 25 alleles were identified for TdALP-bx-7AS, 13 alleles were identified for TdALP-ax-7AS, 7 alleles were identified for TdALP-ay-7AS, and 4 alleles were identified for TdALP-ax-4AL. Correlation studies on TdALP gene diversity and ecological stresses suggested that environmental factors contribute to the ALP polymorphism formation in WEW. Many allelic variants of ALPs in the endosperm of WEW are not present in bread wheat and therefore could be utilized in breeding bread wheat varieties for better quality and elite plant defense characteristics.
Details
- Title
- New insights into the evolution of wheat avenin-like proteins in wild emmer wheat (Triticum dicoccoides)
- Authors/Creators
- Y. Zhang (Author/Creator) - Murdoch UniversityX. Hu (Author/Creator) - Murdoch UniversityS. Islam (Author/Creator) - Murdoch UniversityM. She (Author/Creator) - Murdoch UniversityY. Peng (Author/Creator) - Huazhong Agricultural UniversityZ. Yu (Author/Creator) - Murdoch UniversityS. Wylie (Author/Creator) - Murdoch UniversityA. Juhász (Author/Creator) - Murdoch UniversityM. Dowla (Author/Creator) - Murdoch UniversityR. Yang (Author/Creator) - Murdoch UniversityJ. Zhang (Author/Creator) - Murdoch UniversityX. Wang (Author/Creator) - Murdoch UniversityB. Dell (Author/Creator) - Murdoch UniversityX. Chen (Author/Creator) - Murdoch UniversityE. Nevo (Author/Creator) - University of HaifaD. Sun (Author/Creator) - Huazhong Agricultural UniversityW. Ma (Author/Creator) - Murdoch University
- Publication Details
- Proceedings of the National Academy of Sciences, Vol.115(52), pp.13312-13317
- Publisher
- National Academy of Sciences
- Identifiers
- 991005542922907891
- Copyright
- © 2018 the Author(s).
- Murdoch Affiliation
- State Agricultural Biotechnology Centre; School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.85 Food Science & Technology
- 3.85.99 Cereal Starch Properties
- Web Of Science research areas
- Genetics & Heredity
- ESI research areas
- Agricultural Sciences