Post-zygotic reproductive isolation between sympatric taxa in the Chamaecrista desvauxii complex (Leguminosae-Caesalpinioideae). (1/5)
BACKGROUND AND AIMS: Differences in the mating systems and the mechanisms of reproductive isolation between Chamaecrista desvauxii var. graminea and C. desvauxii var. latistipula were examined in the Chapada Diamantina, Brazil. These taxa occur sympatrically, and their populations demonstrate marked morphological differences. The objective of the present work was to determine if reproductive isolation mechanisms exist between these two populations of C. desvauxii, and to determine the influence of these putative mechanisms on their genetic differentiation. METHODS: Field observations were made of floral biology, phenology and floral visitation, and experiments on intra- and interpopulation pollination and germination rates of the resultant seeds were performed. A genetic examination of the populations was undertaken using four allozyme loci. KEY RESULTS: The varieties examined demonstrated overlapping of flowering periods during the months of June to September. The main pollinator for both varieties was the bee Bombus brevivillus. Both varieties are self-compatible, and a large number of fruits are formed in cross-pollinations with high seed germination rates. Inter-taxa pollinations result in high levels of fruit production, but no seeds are formed. Two of the four loci examined were diagnostic for the varieties, and exclusive high-frequency alleles were encountered at the other loci, leading to a high genetic distance between the two populations (0.495). CONCLUSIONS: Pre-zygotic barriers were not found between the two varieties, and these remain isolated due to post-zygotic events. The two varieties demonstrate marked differences in their morphology, floral biology, phenology and genetic make-up, all of which indicate that they should be treated as two distinct species. A complete revision involving the other varieties of the C. desvauxii complex will be necessary in order to define these two taxa formally. (+info)Floral visitors of Chamaecrista debilis (Vogel) Irwin & Barneby (Fabaceae - Caesalpinioideae) at cerrado of Estacao Ecologica de Jatai, Sao Paulo State, Brazil. (2/5)
Although Chamaecrista Moench genus is a very important source of pollen to bees in the Cerrado, this relationship is almost unknown. Within flower visitors of Ch. debilis, we found hymenopterans (Apidae) as the most abundants, but Coleoptera (Buprestidae) and Lepidoptera (Noctuidae) were also collected. Bees of great size are pointed out as effective pollinators of Cassiinae. Only five out of seventeen species of floral visitors of Ch. debilis sampled in cerrado, are indicated as possible pollinators, from which four species were not previously indicated in other papers. (+info)Potential pollinators of Comolia ovalifolia DC Triana (Melastomataceae) and Chamaecrista ramosa (Vog.) H.S. Irwin and Barneby var. ramosa (Leguminosae-Caesalpinioideae), in restinga, Bahia, Brazil. (3/5)
(+info)Interactions between soil habitat and geographic range location affect plant fitness. (4/5)
(+info)Extensive variation in cadmium tolerance and accumulation among populations of Chamaecrista fasciculata. (5/5)
(+info)Chamaecrista is a genus of flowering plants in the pea family (Fabaceae) commonly known as "sensitive plants" or "partridge peas," characterized by their bipinnately compound leaves that fold together when touched, disturbed, or exposed to bright light.
Chamaecrista is a genus of flowering plants in the pea family (Fabaceae). It includes several species commonly known as "sensitive plants" because their leaves react to touch by folding in on themselves. These plants are native to warm temperate and tropical regions around the world, including North and South America, Africa, and Asia. Some Chamaecrista species have been used in traditional medicine to treat various ailments, such as skin conditions, inflammation, and fever. However, it is important to note that the medical uses of these plants are not well-studied, and they should not be used as a substitute for professional medical advice or treatment.
Fasciculata5
- Sleepingplant (Chamaecrista fasciculata) is a mild allergen. (pollenlibrary.com)
- This Monday color comes from the same outing related here , as a member of the Halictidae family, otherwise known as sweat bees, partakes of the flower of a partridge pea plant ( Chamaecrista fasciculata . (wading-in.net)
- Evaluates differences between a Maryland and an Illinois population of Chamaecrista fasciculata in a common garden experiment. (wildflower.org)
- Partridge pea or Chamaecrista fasciculata, formerly Cassia. (walterreeves.com)
- Another plant with similar features in this subgroup is Partridge-Pea ( Chamaecrista fasciculata ). (bleedingheartland.com)
Fabaceae1
- Chamaecrista is a genus of flowering plants in the pea family, Fabaceae, subfamily Caesalpinioideae. (wikipedia.org)
Cassia2
- Unlike the related genera Cassia and Senna, members of Chamaecrista form root nodules. (wikipedia.org)
- Cassia chamaecrista Boj. (usf.edu)
Genus1
- The genus Chamaecrista has a pantropical distribution and it is well represented in the Brazilian flora, mainly in "campos rupestres" and Riparian forests. (scielo.br)
Absus2
- pteridophylla (Sandwith) H.S.Irwin & Barneby Chamaecrista aspleniifolia (H.S.Irwin & Barneby) H.S.Irwin Subsection Absus DC. (wikipedia.org)
- 19 taxa were collected and described that comprises the Absus, Chamaecrista and Xerocalyx sections. (scielo.br)
Vahl1
- macrocalyx (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista hispidula (Vahl) H.S.Irwin & Barneby Chamaecrista jacobinea (Benth. (wikipedia.org)
Vogel1
- H.S.Irwin & Barneby Series Atroglandulosae Chamaecrista atroglandulosa (Harms) H.S.Irwin & Barneby Series Bracteolatae Chamaecrista bracteolata (Vogel) H.S.Irwin & Barneby Chamaecrista glaziovii (Harms) H.S.Irwin & Barneby Chamaecrista phyllostachya (Benth. (wikipedia.org)
Nigricans2
Rotundifolia1
- Chamaecrista rotundifolia (Pers. (usf.edu)
Benth7
- plurifoliolata (Hoehne) H.S.Irwin & Barneby Chamaecrista hymenaeifolia (Benth. (wikipedia.org)
- negrensis (H.S.Irwin) H.S.Irwin & Barneby Chamaecrista onusta H.S.Irwin & Barneby Chamaecrista polystachya (Benth. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista scleroxylon (Ducke) H.S.Irwin & Barneby Chamaecrista subpeltata (Rizzini) H.S.Irwin & Barneby Chamaecrista xinguensis (Ducke) H.S.Irwin & Barneby Series Pteridophyllae Chamaecrista adiantifolia (Spruce ex Benth. (wikipedia.org)
- ex Colladon Series Absoideae Chamaecrista acosmifolia (Benth. (wikipedia.org)
- paludicola (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista brevicalyx (Benth. (wikipedia.org)
- H.S.Irwin & Barn Chamaecrista roncadorensis (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista rugosula (Benth. (wikipedia.org)
- paucijuga (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista catharticoides (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista microsenna (H.S.Irwin & Barneby) H.S.Irwin Series Confertae Chamaecrista caespitosa (Benth. (wikipedia.org)
Irwin12
- Chamaecrista comprises the following species, organized into sections, subsections, and series: Series Apoucouita Chamaecrista aiarana (H.S.Irwin) H.S.Irwin & Barneby Chamaecrista apoucouita (Aubl. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista aspidiifolia H.S.Irwin & Barneby Chamaecrista bahiae (H.S.Irwin) H.S.Irwin & Barneby Chamaecrista boyanii (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista compitalis (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista duartei (H.S.Irwin) H.S.Irwin & Barneby Chamaecrista eitenorum (H.S.Irwin & Barneby) H.S.Irwin var. (wikipedia.org)
- regana (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista ensiformis (Vell. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista negrensis (H.S.Irwin) H.S.Irwin & Barneby var. (wikipedia.org)
- oropedii (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista amiciella (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista andersonii (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista barbata (Nees & Mart. (wikipedia.org)
- elliptica (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista campestris H.S.Irwin & Barneby Chamaecrista carobinha (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista chapadae (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista egleri (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista fagonioides (Vogel) H.S.Irwin & Barneby var. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista paraunana (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista punctulata (Hook. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista salvatoris (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista souzana (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista tetraphylla Britton & Rose Chamaecrista viscosa (Kunth) H.S.Irwin & Barneby var. (wikipedia.org)
- viscosa (Kunth) H.S.Irwin & Barneby Chamaecrista zygophylloides (Taub. (wikipedia.org)
- H.S.Irwin & Barneby Series Adenophyllae Chamaecrista adenophylla (Taub. (wikipedia.org)
- H.S.Irwin & Barneby Chamaecrista chrysosepala (H.S.Irwin & Barneby) H.S.Irwin Chamaecrista hatschbachii H.S.Irwin & Barneby Chamaecrista itabiritoana (H.S.Irwin & Barneby) H.S.Irwin Series Andromedeae Chamaecrista andromedea (Benth. (wikipedia.org)
- H.S.Irwin & Barneby Series Catharticae Chamaecrista cathartica (Mart. (wikipedia.org)
Names1
- Scientific Names: Chamaecrista mindanaensis (Merr. (legumes-online.net)
Greene1
- Scientific Names: Chamaecrista flexuosa (L.)Greene. (legumes-online.net)
Senna1
- We investigated the production dynamics of L and R floral types in seven species and a variety of monomorphic enantiostylous species of the genera Senna and Chamaecrista. (bvsalud.org)
20201
- 2020. Chamaecrista conferta in Kew Science Plants of the World Online . (wikimedia.org)
Serpens2
- Chamaecrista serpens var. (nybg.org)
- Chamaecrista Serpens or Slender Sensitive Pea 's floral region is North America US Lower 48, specifically in the states of Arizona, Florida and New Mexico. (sagebud.com)
Traits1
- In this study we evaluated the ecophysiological traits of individuals of Chamaecrista semaphora from a natural population and from a site under restoration. (scielo.br)
Familia1
- Micrografía electrónica de transmisión de una preparación purificada y en tinción negativa del virus del mosaico verde suave del tabaco (Tobacco mild green mosaic virus- TMGMV, género Tobamovirus, familia Virgaviridae), de Nicotiana glauca Graham, infectado experimentalmente. (biotaneotropica.org.br)