Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq

Phosphorus is a macronutrient indispensable for plant growth and development. Plants utilize specialized transporters (PHT) to take up inorganic phosphorus and distribute it throughout the plant. The PHT transporters are divided into five families: PHT1 to PHT5. Each PHT family has a particular phys...

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Main Authors: David Chan-Rodriguez, Brian Wakimwayi Koboyi, Sirine Werghi, Bradley J. Till, Julia Maksymiuk, Fatemeh Shoormij, Abuya Hilderlith, Anna Hawliczek, Maksymilian Królik, Hanna Bolibok-Brągoszewska
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Plant Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2025.1529358/full
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author David Chan-Rodriguez
Brian Wakimwayi Koboyi
Sirine Werghi
Bradley J. Till
Julia Maksymiuk
Fatemeh Shoormij
Abuya Hilderlith
Anna Hawliczek
Maksymilian Królik
Hanna Bolibok-Brągoszewska
author_facet David Chan-Rodriguez
Brian Wakimwayi Koboyi
Sirine Werghi
Bradley J. Till
Julia Maksymiuk
Fatemeh Shoormij
Abuya Hilderlith
Anna Hawliczek
Maksymilian Królik
Hanna Bolibok-Brągoszewska
author_sort David Chan-Rodriguez
collection DOAJ
description Phosphorus is a macronutrient indispensable for plant growth and development. Plants utilize specialized transporters (PHT) to take up inorganic phosphorus and distribute it throughout the plant. The PHT transporters are divided into five families: PHT1 to PHT5. Each PHT family has a particular physiological and cellular function. Rye (Secale cereale L.) is a member of Triticeae, and an important source of variation for wheat breeding. It is considered to have the highest tolerance of nutrient deficiency, among Triticeae. To date, there is no report about genes involved in response to phosphorus deficiency in rye. The aim of this study was to: (i) identify and characterize putative members of different phosphate transporter families in rye, (ii) assess their sequence diversity in a collection of 94 diverse rye accessions via low-coverage resequencing (DArTreseq), and (iii) evaluate the expression of putative rye Pht genes under phosphate-deficient conditions. We identified 29 and 35 putative Pht transporter genes in the rye Lo7 and Weining reference genomes, respectively, representing all known Pht families. Phylogenetic analysis revealed a close relationship of rye PHT with previously characterized PHT proteins from other species. Quantitative RT PCR carried out on leaf and root samples of Lo7 plants grown in Pi-deficient and control condition demonstrated that ScPht1;6, ScPht2 and ScPht3;3 are Pi-deficiency responsive. Based on DArTreseq genotyping of 94 diverse rye accessions we identified 820 polymorphic sites within rye ScPht, including 12 variants identified by the SIFT algorithm as having a potentially deleterious effect, of which three are scored as high confidence. SNP density varied markedly between ScPht genes. This report is the first step toward elucidating the mechanisms of rye’s response to Pi deficiency. Our findings point to multiple layers of adaptation to local environments, ranging from gene copy number variation to differences in level of polymorphism across Pht family members. DArTreseq genotyping permits for a quick and cost-effective assessment of polymorphism levels across genes/gene families and supports identification and prioritization of candidates for further studies. Collectively our findings provide the foundation for selecting most promising candidates for further functional characterization.
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spelling doaj-art-a1bd6d2dd8554669a8a84fefc73ca3c72025-08-20T02:06:44ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-06-011610.3389/fpls.2025.15293581529358Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseqDavid Chan-Rodriguez0Brian Wakimwayi Koboyi1Sirine Werghi2Bradley J. Till3Julia Maksymiuk4Fatemeh Shoormij5Abuya Hilderlith6Anna Hawliczek7Maksymilian Królik8Hanna Bolibok-Brągoszewska9Department of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandVeterinary Genetics Laboratory, University of California, Davis, Davis, CA, United StatesDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, IranDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandDepartment of Plant Genetics Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, PolandPhosphorus is a macronutrient indispensable for plant growth and development. Plants utilize specialized transporters (PHT) to take up inorganic phosphorus and distribute it throughout the plant. The PHT transporters are divided into five families: PHT1 to PHT5. Each PHT family has a particular physiological and cellular function. Rye (Secale cereale L.) is a member of Triticeae, and an important source of variation for wheat breeding. It is considered to have the highest tolerance of nutrient deficiency, among Triticeae. To date, there is no report about genes involved in response to phosphorus deficiency in rye. The aim of this study was to: (i) identify and characterize putative members of different phosphate transporter families in rye, (ii) assess their sequence diversity in a collection of 94 diverse rye accessions via low-coverage resequencing (DArTreseq), and (iii) evaluate the expression of putative rye Pht genes under phosphate-deficient conditions. We identified 29 and 35 putative Pht transporter genes in the rye Lo7 and Weining reference genomes, respectively, representing all known Pht families. Phylogenetic analysis revealed a close relationship of rye PHT with previously characterized PHT proteins from other species. Quantitative RT PCR carried out on leaf and root samples of Lo7 plants grown in Pi-deficient and control condition demonstrated that ScPht1;6, ScPht2 and ScPht3;3 are Pi-deficiency responsive. Based on DArTreseq genotyping of 94 diverse rye accessions we identified 820 polymorphic sites within rye ScPht, including 12 variants identified by the SIFT algorithm as having a potentially deleterious effect, of which three are scored as high confidence. SNP density varied markedly between ScPht genes. This report is the first step toward elucidating the mechanisms of rye’s response to Pi deficiency. Our findings point to multiple layers of adaptation to local environments, ranging from gene copy number variation to differences in level of polymorphism across Pht family members. DArTreseq genotyping permits for a quick and cost-effective assessment of polymorphism levels across genes/gene families and supports identification and prioritization of candidates for further studies. Collectively our findings provide the foundation for selecting most promising candidates for further functional characterization.https://www.frontiersin.org/articles/10.3389/fpls.2025.1529358/fullryeSecale cereale L.Pht genesphosphate deficiencyphylogenetic relationshipsgene diversity
spellingShingle David Chan-Rodriguez
Brian Wakimwayi Koboyi
Sirine Werghi
Bradley J. Till
Julia Maksymiuk
Fatemeh Shoormij
Abuya Hilderlith
Anna Hawliczek
Maksymilian Królik
Hanna Bolibok-Brągoszewska
Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
Frontiers in Plant Science
rye
Secale cereale L.
Pht genes
phosphate deficiency
phylogenetic relationships
gene diversity
title Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
title_full Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
title_fullStr Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
title_full_unstemmed Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
title_short Phosphate transporter gene families in rye (Secale cereale L.) – genome-wide identification, characterization and sequence diversity assessment via DArTreseq
title_sort phosphate transporter gene families in rye secale cereale l genome wide identification characterization and sequence diversity assessment via dartreseq
topic rye
Secale cereale L.
Pht genes
phosphate deficiency
phylogenetic relationships
gene diversity
url https://www.frontiersin.org/articles/10.3389/fpls.2025.1529358/full
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