Phylogenetic relationships of citrus and its relatives based on matK gene sequences.

The genus Citrus includes mandarin, orange, lemon, grapefruit and lime, which have high economic and nutritional value. The family Rutaceae can be divided into 7 subfamilies, including Aurantioideae. The genus Citrus belongs to the subfamily Aurantioideae. In this study, we sequenced the chloroplast...

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Autores principales:	Tshering Penjor, Masashi Yamamoto, Miki Uehara, Manami Ide, Natsumi Matsumoto, Ryoji Matsumoto, Yukio Nagano
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/29801a43a2cd487fb6f274f36f58dcae
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spelling	oai:doaj.org-article:29801a43a2cd487fb6f274f36f58dcae2021-11-18T07:47:48ZPhylogenetic relationships of citrus and its relatives based on matK gene sequences.1932-620310.1371/journal.pone.0062574https://doaj.org/article/29801a43a2cd487fb6f274f36f58dcae2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23638116/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The genus Citrus includes mandarin, orange, lemon, grapefruit and lime, which have high economic and nutritional value. The family Rutaceae can be divided into 7 subfamilies, including Aurantioideae. The genus Citrus belongs to the subfamily Aurantioideae. In this study, we sequenced the chloroplast matK genes of 135 accessions from 22 genera of Aurantioideae and analyzed them phylogenetically. Our study includes many accessions that have not been examined in other studies. The subfamily Aurantioideae has been classified into 2 tribes, Clauseneae and Citreae, and our current molecular analysis clearly discriminate Citreae from Clauseneae by using only 1 chloroplast DNA sequence. Our study confirms previous observations on the molecular phylogeny of Aurantioideae in many aspects. However, we have provided novel information on these genetic relationships. For example, inconsistent with the previous observation, and consistent with our preliminary study using the chloroplast rbcL genes, our analysis showed that Feroniella oblata is not nested in Citrus species and is closely related with Feronia limonia. Furthermore, we have shown that Murraya paniculata is similar to Merrillia caloxylon and is dissimilar to Murraya koenigii. We found that "true citrus fruit trees" could be divided into 2 subclusters. One subcluster included Citrus, Fortunella, and Poncirus, while the other cluster included Microcitrus and Eremocitrus. Compared to previous studies, our current study is the most extensive phylogenetic study of Citrus species since it includes 93 accessions. The results indicate that Citrus species can be classified into 3 clusters: a citron cluster, a pummelo cluster, and a mandarin cluster. Although most mandarin accessions belonged to the mandarin cluster, we found some exceptions. We also obtained the information on the genetic background of various species of acid citrus grown in Japan. Because the genus Citrus contains many important accessions, we have comprehensively discussed the classification of this genus.Tshering PenjorMasashi YamamotoMiki UeharaManami IdeNatsumi MatsumotoRyoji MatsumotoYukio NaganoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e62574 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tshering Penjor Masashi Yamamoto Miki Uehara Manami Ide Natsumi Matsumoto Ryoji Matsumoto Yukio Nagano Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
description	The genus Citrus includes mandarin, orange, lemon, grapefruit and lime, which have high economic and nutritional value. The family Rutaceae can be divided into 7 subfamilies, including Aurantioideae. The genus Citrus belongs to the subfamily Aurantioideae. In this study, we sequenced the chloroplast matK genes of 135 accessions from 22 genera of Aurantioideae and analyzed them phylogenetically. Our study includes many accessions that have not been examined in other studies. The subfamily Aurantioideae has been classified into 2 tribes, Clauseneae and Citreae, and our current molecular analysis clearly discriminate Citreae from Clauseneae by using only 1 chloroplast DNA sequence. Our study confirms previous observations on the molecular phylogeny of Aurantioideae in many aspects. However, we have provided novel information on these genetic relationships. For example, inconsistent with the previous observation, and consistent with our preliminary study using the chloroplast rbcL genes, our analysis showed that Feroniella oblata is not nested in Citrus species and is closely related with Feronia limonia. Furthermore, we have shown that Murraya paniculata is similar to Merrillia caloxylon and is dissimilar to Murraya koenigii. We found that "true citrus fruit trees" could be divided into 2 subclusters. One subcluster included Citrus, Fortunella, and Poncirus, while the other cluster included Microcitrus and Eremocitrus. Compared to previous studies, our current study is the most extensive phylogenetic study of Citrus species since it includes 93 accessions. The results indicate that Citrus species can be classified into 3 clusters: a citron cluster, a pummelo cluster, and a mandarin cluster. Although most mandarin accessions belonged to the mandarin cluster, we found some exceptions. We also obtained the information on the genetic background of various species of acid citrus grown in Japan. Because the genus Citrus contains many important accessions, we have comprehensively discussed the classification of this genus.
format	article
author	Tshering Penjor Masashi Yamamoto Miki Uehara Manami Ide Natsumi Matsumoto Ryoji Matsumoto Yukio Nagano
author_facet	Tshering Penjor Masashi Yamamoto Miki Uehara Manami Ide Natsumi Matsumoto Ryoji Matsumoto Yukio Nagano
author_sort	Tshering Penjor
title	Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
title_short	Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
title_full	Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
title_fullStr	Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
title_full_unstemmed	Phylogenetic relationships of citrus and its relatives based on matK gene sequences.
title_sort	phylogenetic relationships of citrus and its relatives based on matk gene sequences.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/29801a43a2cd487fb6f274f36f58dcae
work_keys_str_mv	AT tsheringpenjor phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT masashiyamamoto phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT mikiuehara phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT manamiide phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT natsumimatsumoto phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT ryojimatsumoto phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences AT yukionagano phylogeneticrelationshipsofcitrusanditsrelativesbasedonmatkgenesequences
_version_	1718422901439332352

Phylogenetic relationships of citrus and its relatives based on matK gene sequences.

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