Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae)
Abstract Myrciinae, one of the nine subtribes of Myrteae, is a monophyletic group and only includes Myrcia. Phylogenetic studies have culminated in the establishment of sections in this genus supported by floral morphological traits. The anatomy of reproductive organs in Myrteae has proven to be imp...
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Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2024-12-01
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| Series: | Rodriguésia |
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| _version_ | 1846142528187793408 |
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| author | Isabele Pierin Carneiro Marcela Thadeo Káthia Socorro Mathias Mourão |
| author_facet | Isabele Pierin Carneiro Marcela Thadeo Káthia Socorro Mathias Mourão |
| author_sort | Isabele Pierin Carneiro |
| collection | DOAJ |
| description | Abstract Myrciinae, one of the nine subtribes of Myrteae, is a monophyletic group and only includes Myrcia. Phylogenetic studies have culminated in the establishment of sections in this genus supported by floral morphological traits. The anatomy of reproductive organs in Myrteae has proven to be important for understanding the evolution in subtribes. We described the floral anatomy of 12 species of Myrcia in eight of the nine sections to identify characteristics that may be useful for species or section delimitation. Herbarium samples and freshly collected material were processed using standard anatomical techniques. Anatomical aspects in all floral whorls that were similar between the species studied, but may occur in species in other subtribes of Myrteae, are the monocyclic pattern of ovarian vascularization, an outer, median and inner parenchymatic ovarian mesophyll, homogeneous mesophyll in the sepal, and campylotropous ovule. Spongy parenchyma in the petal seems to be the most common pattern for Myrteae, but in Pliniinae, a sister subtribe of Myciinae, homogeneous mesophyll is the most frequent type. The discrete differences observed that should be further explored in the subtribe Myrciinae are the presence or absence of unicellular, non-glandular trichomes in the indumentum of the pedicel, gynoecium, hypanthium, sepal, and petal. |
| format | Article |
| id | doaj-art-1f2f6abcd2624e23b786cc0a16f7e2e2 |
| institution | Kabale University |
| issn | 2175-7860 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Instituto de Pesquisas Jardim Botânico do Rio de Janeiro |
| record_format | Article |
| series | Rodriguésia |
| spelling | doaj-art-1f2f6abcd2624e23b786cc0a16f7e2e22024-12-03T07:51:01ZengInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia2175-78602024-12-017510.1590/2175-7860202475076Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae)Isabele Pierin Carneirohttps://orcid.org/0000-0001-5494-9447Marcela Thadeohttps://orcid.org/0000-0003-2351-7662Káthia Socorro Mathias Mourãohttps://orcid.org/0000-0002-9598-0253Abstract Myrciinae, one of the nine subtribes of Myrteae, is a monophyletic group and only includes Myrcia. Phylogenetic studies have culminated in the establishment of sections in this genus supported by floral morphological traits. The anatomy of reproductive organs in Myrteae has proven to be important for understanding the evolution in subtribes. We described the floral anatomy of 12 species of Myrcia in eight of the nine sections to identify characteristics that may be useful for species or section delimitation. Herbarium samples and freshly collected material were processed using standard anatomical techniques. Anatomical aspects in all floral whorls that were similar between the species studied, but may occur in species in other subtribes of Myrteae, are the monocyclic pattern of ovarian vascularization, an outer, median and inner parenchymatic ovarian mesophyll, homogeneous mesophyll in the sepal, and campylotropous ovule. Spongy parenchyma in the petal seems to be the most common pattern for Myrteae, but in Pliniinae, a sister subtribe of Myciinae, homogeneous mesophyll is the most frequent type. The discrete differences observed that should be further explored in the subtribe Myrciinae are the presence or absence of unicellular, non-glandular trichomes in the indumentum of the pedicel, gynoecium, hypanthium, sepal, and petal.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602024000100241&lng=en&tlng=enanatomical featuresindumentumreproductive organsvascularization |
| spellingShingle | Isabele Pierin Carneiro Marcela Thadeo Káthia Socorro Mathias Mourão Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) Rodriguésia anatomical features indumentum reproductive organs vascularization |
| title | Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) |
| title_full | Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) |
| title_fullStr | Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) |
| title_full_unstemmed | Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) |
| title_short | Floral anatomy of 12 species of the subtribe Myrciinae (Myrteae, Myrtaceae) |
| title_sort | floral anatomy of 12 species of the subtribe myrciinae myrteae myrtaceae |
| topic | anatomical features indumentum reproductive organs vascularization |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602024000100241&lng=en&tlng=en |
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