Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume
Abstract
The vast majority of the species of family Leguminosae have an apocarpous monomerous gynoecium. However, only a few taxa regularly produce multicarpellate gynoecia. The only known species of papilionoid legumes which has both a typical “fag blossom” and more than one carpel is Thermopsis turcica (tribe Thermopsideae). We studied the foral ontogeny of T. turcica with special reference to its gynoecium initiation and development. Flowers arise in simple terminal racemes in a helical order and are subtended by bracts. Bracteoles are initiated but then suppressed. Sepals appear more or less simultaneously. Then, petals emerge and remain retarded in development until later stages. The gynoecium usually includes three carpels with an abaxial one initiating frst and two adaxial carpels arising later and developing somewhat asynchronously. The abaxial carpel appears concomitant with the outer stamens and is always oriented with its cleft toward the adaxial side, while the adaxial carpels face ...each other with their clefts and have them slightly turned to the adaxial side. Rarely uni-, bi- or tetracarpellate fowers arise. Seed productivity of T. turcica is on approximately the same level as in unicarpellate species of Thermopsis hence supporting the fact that the multicarpellate habit is adaptive or at least not harmful in this species.
Keywords:
evolution / flag blossom / flower / monosymmetry / polymerous gynoeciumSource:
Plant Systematics and Evolution, 2018, 304, 461-471Publisher:
- Springer
Collections
Institution/Community
FiVeRTY - JOUR AU - Sinjushin, Andrey AU - Tekdal, Dilek AU - Ciftci, Cem AU - Cetiner, Selim PY - 2018 UR - http://fiver.ifvcns.rs/handle/123456789/3537 AB - The vast majority of the species of family Leguminosae have an apocarpous monomerous gynoecium. However, only a few taxa regularly produce multicarpellate gynoecia. The only known species of papilionoid legumes which has both a typical “fag blossom” and more than one carpel is Thermopsis turcica (tribe Thermopsideae). We studied the foral ontogeny of T. turcica with special reference to its gynoecium initiation and development. Flowers arise in simple terminal racemes in a helical order and are subtended by bracts. Bracteoles are initiated but then suppressed. Sepals appear more or less simultaneously. Then, petals emerge and remain retarded in development until later stages. The gynoecium usually includes three carpels with an abaxial one initiating frst and two adaxial carpels arising later and developing somewhat asynchronously. The abaxial carpel appears concomitant with the outer stamens and is always oriented with its cleft toward the adaxial side, while the adaxial carpels face each other with their clefts and have them slightly turned to the adaxial side. Rarely uni-, bi- or tetracarpellate fowers arise. Seed productivity of T. turcica is on approximately the same level as in unicarpellate species of Thermopsis hence supporting the fact that the multicarpellate habit is adaptive or at least not harmful in this species. PB - Springer T2 - Plant Systematics and Evolution T1 - Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume EP - 471 SP - 461 VL - 304 DO - 10.1007/s00606-018-1491-6 ER -
@article{ author = "Sinjushin, Andrey and Tekdal, Dilek and Ciftci, Cem and Cetiner, Selim", year = "2018", abstract = "The vast majority of the species of family Leguminosae have an apocarpous monomerous gynoecium. However, only a few taxa regularly produce multicarpellate gynoecia. The only known species of papilionoid legumes which has both a typical “fag blossom” and more than one carpel is Thermopsis turcica (tribe Thermopsideae). We studied the foral ontogeny of T. turcica with special reference to its gynoecium initiation and development. Flowers arise in simple terminal racemes in a helical order and are subtended by bracts. Bracteoles are initiated but then suppressed. Sepals appear more or less simultaneously. Then, petals emerge and remain retarded in development until later stages. The gynoecium usually includes three carpels with an abaxial one initiating frst and two adaxial carpels arising later and developing somewhat asynchronously. The abaxial carpel appears concomitant with the outer stamens and is always oriented with its cleft toward the adaxial side, while the adaxial carpels face each other with their clefts and have them slightly turned to the adaxial side. Rarely uni-, bi- or tetracarpellate fowers arise. Seed productivity of T. turcica is on approximately the same level as in unicarpellate species of Thermopsis hence supporting the fact that the multicarpellate habit is adaptive or at least not harmful in this species.", publisher = "Springer", journal = "Plant Systematics and Evolution", title = "Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume", pages = "471-461", volume = "304", doi = "10.1007/s00606-018-1491-6" }
Sinjushin, A., Tekdal, D., Ciftci, C.,& Cetiner, S.. (2018). Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume. in Plant Systematics and Evolution Springer., 304, 461-471. https://doi.org/10.1007/s00606-018-1491-6
Sinjushin A, Tekdal D, Ciftci C, Cetiner S. Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume. in Plant Systematics and Evolution. 2018;304:461-471. doi:10.1007/s00606-018-1491-6 .
Sinjushin, Andrey, Tekdal, Dilek, Ciftci, Cem, Cetiner, Selim, "Floral development in Thermopsis turcica, an unusual multicarpellate papilionoid legume" in Plant Systematics and Evolution, 304 (2018):461-471, https://doi.org/10.1007/s00606-018-1491-6 . .