Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae)
Bruguiera hainesii (Rhizophoraceae) is one of the two Critically Endangered mangrove species listed in the IUCN Red List of Threatened Species. Although the species is vulnerable to extinction, its genetic diversity and the evolutionary relationships with other Bruguiera species are not well underst...
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| Format: | Article |
| Language: | English |
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Springer
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/55226/1/Bruguiera%20hainesii%2C%20a%20critically%20endangered%20mangrove%20species%2C%20is%20a%20hybrid%20between%20B.%20.pdf |
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| author | Ono, Junya Yong, Jean W. H. Takayama, Koji Saleh, Mohd Nazre Bin Wee, Alison K. S. Asakawa, Takeshi Yllano, Orlex Baylen Salmo III, Severino G. Suleiman, Monica Nguyen, Xuan Tung Khin, Khin Soe Meenakshisundaram, Sankararamasubramanian Halasya Watano, Yasuyuki Webb, Edward L. Kajita, Tadashi |
| author_facet | Ono, Junya Yong, Jean W. H. Takayama, Koji Saleh, Mohd Nazre Bin Wee, Alison K. S. Asakawa, Takeshi Yllano, Orlex Baylen Salmo III, Severino G. Suleiman, Monica Nguyen, Xuan Tung Khin, Khin Soe Meenakshisundaram, Sankararamasubramanian Halasya Watano, Yasuyuki Webb, Edward L. Kajita, Tadashi |
| author_sort | Ono, Junya |
| collection | UPM |
| description | Bruguiera hainesii (Rhizophoraceae) is one of the two Critically Endangered mangrove species listed in the IUCN Red List of Threatened Species. Although the species is vulnerable to extinction, its genetic diversity and the evolutionary relationships with other Bruguiera species are not well understood. Also, intermediate morphological characters imply that the species might be of hybrid origin. To clarify the genetic relationship between B. hainesii and other Bruguiera species, we conducted molecular analyses including all six Bruguiera species using DNA sequences of two nuclear genes (CesA and UNK) and three chloroplast regions (intergenic spacer regions of trnL-trnF, trnS-trnG and atpB-rbcL). For nuclear DNA markers, all nine B. hainesii samples from five populations were heterozygous at both loci, with one allele was shared with B. cylindrica, and the other with B. gymnorhiza. For chloroplast DNA markers, the two haplotypes found in B. hainesii were shared only by B. cylindrica. These results suggested that B. hainesii is a hybrid between B. cylindrica as the maternal parent and B. gymnorhiza as the paternal one. Furthermore, chloroplast DNA haplotypes found in B. hainesii suggest that hybridization has occurred independently in regions where the distribution ranges of the parental species meet. As the IUCN Red List of Threatened Species currently excludes hybrids (except for apomictic plant hybrids), the conservation status of B. hainesii should be reconsidered. |
| first_indexed | 2024-03-06T09:22:49Z |
| format | Article |
| id | upm.eprints-55226 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:22:49Z |
| publishDate | 2016 |
| publisher | Springer |
| record_format | dspace |
| spelling | upm.eprints-552262018-08-14T02:30:17Z http://psasir.upm.edu.my/id/eprint/55226/ Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) Ono, Junya Yong, Jean W. H. Takayama, Koji Saleh, Mohd Nazre Bin Wee, Alison K. S. Asakawa, Takeshi Yllano, Orlex Baylen Salmo III, Severino G. Suleiman, Monica Nguyen, Xuan Tung Khin, Khin Soe Meenakshisundaram, Sankararamasubramanian Halasya Watano, Yasuyuki Webb, Edward L. Kajita, Tadashi Bruguiera hainesii (Rhizophoraceae) is one of the two Critically Endangered mangrove species listed in the IUCN Red List of Threatened Species. Although the species is vulnerable to extinction, its genetic diversity and the evolutionary relationships with other Bruguiera species are not well understood. Also, intermediate morphological characters imply that the species might be of hybrid origin. To clarify the genetic relationship between B. hainesii and other Bruguiera species, we conducted molecular analyses including all six Bruguiera species using DNA sequences of two nuclear genes (CesA and UNK) and three chloroplast regions (intergenic spacer regions of trnL-trnF, trnS-trnG and atpB-rbcL). For nuclear DNA markers, all nine B. hainesii samples from five populations were heterozygous at both loci, with one allele was shared with B. cylindrica, and the other with B. gymnorhiza. For chloroplast DNA markers, the two haplotypes found in B. hainesii were shared only by B. cylindrica. These results suggested that B. hainesii is a hybrid between B. cylindrica as the maternal parent and B. gymnorhiza as the paternal one. Furthermore, chloroplast DNA haplotypes found in B. hainesii suggest that hybridization has occurred independently in regions where the distribution ranges of the parental species meet. As the IUCN Red List of Threatened Species currently excludes hybrids (except for apomictic plant hybrids), the conservation status of B. hainesii should be reconsidered. Springer 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/55226/1/Bruguiera%20hainesii%2C%20a%20critically%20endangered%20mangrove%20species%2C%20is%20a%20hybrid%20between%20B.%20.pdf Ono, Junya and Yong, Jean W. H. and Takayama, Koji and Saleh, Mohd Nazre Bin and Wee, Alison K. S. and Asakawa, Takeshi and Yllano, Orlex Baylen and Salmo III, Severino G. and Suleiman, Monica and Nguyen, Xuan Tung and Khin, Khin Soe and Meenakshisundaram, Sankararamasubramanian Halasya and Watano, Yasuyuki and Webb, Edward L. and Kajita, Tadashi (2016) Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae). Conservation Genetics Resources, 17 (5). pp. 1137-1144. ISSN 1877-7252; ESSN: 1877-7260 10.1007/s10592-016-0849-y |
| spellingShingle | Ono, Junya Yong, Jean W. H. Takayama, Koji Saleh, Mohd Nazre Bin Wee, Alison K. S. Asakawa, Takeshi Yllano, Orlex Baylen Salmo III, Severino G. Suleiman, Monica Nguyen, Xuan Tung Khin, Khin Soe Meenakshisundaram, Sankararamasubramanian Halasya Watano, Yasuyuki Webb, Edward L. Kajita, Tadashi Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title | Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title_full | Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title_fullStr | Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title_full_unstemmed | Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title_short | Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. Cylindrica and B. Gymnorhiza (Rhizophoraceae) |
| title_sort | bruguiera hainesii a critically endangered mangrove species is a hybrid between b cylindrica and b gymnorhiza rhizophoraceae |
| url | http://psasir.upm.edu.my/id/eprint/55226/1/Bruguiera%20hainesii%2C%20a%20critically%20endangered%20mangrove%20species%2C%20is%20a%20hybrid%20between%20B.%20.pdf |
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