The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae)
Thecae horns are specialized anther extensions present in two tribes of Araceae: Cryptocoryneae and Schismatoglottideae. This structure is important in defning the generic boundaries and segregations within Schismatoglottideae. Eleven convergent lineages of thecae horns have evolved within Schismato...
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my.unimas.ir.402902023-03-30T03:17:33Z http://ir.unimas.my/id/eprint/40290/ The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) Shook Ling, Low Sin Yeng, Wong QK Botany Thecae horns are specialized anther extensions present in two tribes of Araceae: Cryptocoryneae and Schismatoglottideae. This structure is important in defning the generic boundaries and segregations within Schismatoglottideae. Eleven convergent lineages of thecae horns have evolved within Schismatoglottideae, contributing to the diverse stamen structures and thecae orientations. Here, we investigated the stamens of 22 taxa belonging to eight genera (Aridarum, Burttianthus, Hera, Heteroaridarum, Pursegloveia, Naiadia, Tawaia, and Toga) of Schismatoglottideae. We assessed the foral biology by focusing on the angle and movement of the thecae horns during the pistillate and staminate phases of anthesis. The angle of the thecae horns changed at the start of anthesis and, in several species, elevated further during staminate anthesis. Papillae cells, smooth or verrugated surface, are present on the thecae horns with the excavated connective often found to be smooth vs. non excavated connective, with verrugated surface. The presence of calcium oxalate packages decreases from pistillate phase to staminate phase of anthesis and is postulated to be a defense mechanism against predators. Springer 2022-07-20 Article PeerReviewed text en http://ir.unimas.my/id/eprint/40290/3/The%20diversification%20-%20Copy.pdf Shook Ling, Low and Sin Yeng, Wong (2022) The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae). Organisms Diversity & Evolution, 29 (1). pp. 1-14. ISSN 1439-6092 https://link.springer.com/article/10.1007/s13127-022-00573-9 https://doi.org/10.1007/s13127-022-00573-9 |
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QK Botany Shook Ling, Low Sin Yeng, Wong The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
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Thecae horns are specialized anther extensions present in two tribes of Araceae: Cryptocoryneae and Schismatoglottideae. This structure is important in defning the generic boundaries and segregations within Schismatoglottideae. Eleven convergent lineages of thecae horns have evolved within Schismatoglottideae, contributing to the diverse stamen structures and thecae orientations. Here, we investigated the stamens of 22 taxa belonging to eight genera (Aridarum, Burttianthus, Hera, Heteroaridarum, Pursegloveia, Naiadia, Tawaia, and Toga) of Schismatoglottideae. We assessed the foral biology by
focusing on the angle and movement of the thecae horns during the pistillate and staminate phases of anthesis. The angle of the thecae horns changed at the start of anthesis and, in several species, elevated further during staminate anthesis. Papillae cells, smooth or verrugated surface, are present on the thecae horns with the excavated connective often found to be smooth vs. non excavated connective, with verrugated surface. The presence of calcium oxalate packages decreases from pistillate phase to staminate phase of anthesis and is postulated to be a defense mechanism against predators. |
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Article |
author |
Shook Ling, Low Sin Yeng, Wong |
author_facet |
Shook Ling, Low Sin Yeng, Wong |
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Shook Ling, Low |
title |
The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
title_short |
The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
title_full |
The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
title_fullStr |
The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
title_full_unstemmed |
The diversification of thecae horns and their putative significance—a case study of Schismatoglottideae (Araceae) |
title_sort |
diversification of thecae horns and their putative significance—a case study of schismatoglottideae (araceae) |
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Springer |
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2022 |
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http://ir.unimas.my/id/eprint/40290/3/The%20diversification%20-%20Copy.pdf http://ir.unimas.my/id/eprint/40290/ https://link.springer.com/article/10.1007/s13127-022-00573-9 https://doi.org/10.1007/s13127-022-00573-9 |
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1762396709159174144 |
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