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1. Multiple reproductive strategies of a spring ephemeral plant, Fritillaria maximowiczii, enable its adaptation to harsh environments

Author:
Ling Tong; Feng‐Wei Lei; Yuan‐Mi Wu; Xue‐Li Shen; Xiao‐Fei Xia; De‐Huai Zhang; Xian‐Yun Mu; Zhi‐Xiang Zhang
Source:
Plant species biology 2022 v.37 no.1 pp. 38-51
ISSN:
0913-557X
Subject:
dichogamy,   etc   ; Fritillaria; apomixis; ephemeral plants; fruits; herkogamy; ornamental value; outcrossing; ovules; phylogeny; pollen; pollination; reproductive success;     Show all 13 Subjects
Abstract:
... Spring ephemeral plants that experience harsh environments have developed specific reproductive characteristics. These characteristics are of great importance to the survival and reproduction of these species, particularly for rare and endangered plants. Fritillaria is a genus consisting of spring ephemeral plants with significant medicinal and ornamental value whose wild resources are highly thre ...
DOI:
10.1111/1442-1984.12350

2. Breeding systems of four plant communities in the Venezuelan central plains

Author:
Nelson Ramírez
Source:
Plant systematics and evolution 2022 v.308 no.2 pp. 17
ISSN:
0378-2697
Subject:
dichogamy,   etc   ; drought; ecotones; epizoochory; evolution; flowers; forests; frugivores; granivores; herbaceous plants; herkogamy; plant taxonomy; savannas; self-pollination; wet season; wind; woody plants;     Show all 17 Subjects
Abstract:
... The goal of this study was to assess breeding systems, and inbreeding and outbreeding depression in four vegetation types in the Venezuelan central plains: forest, ecotone, savanna and disturbed areas. Such analysis allowed inferring how reproductive systems are influenced by the structure and complexity of the vegetation. This analysis was conducted considering the life form, successional stage, ...
DOI:
10.1007/s00606-021-01794-9

3. Variation in dichogamy and myophily in two dioecious Bridelia species (Phyllanthaceae)

Author:
M. A. Dias; R. M. C. S. Ratnayake
Source:
Australian journal of botany 2021 v.69 no.5 pp. 301-309
ISSN:
0067-1924
Subject:
dichogamy,   etc   ; Bridelia; dioecy; fly pollination; phenology;     Show all 5 Subjects
Abstract:
... Duodichogamy and multi-cycle dichogamy are rare forms of temporal separation of staminate and pistillate reproductive functions in angiosperms. We studied the floral phenology, breeding system and pollination of Bridelia retusa (L.) A.Juss. and Bridelia moonii Thwaites, with a particular focus on the alternation of sexual phases to determine variation in their dichogamy. Three dichogamy patterns w ...
DOI:
10.1071/BT21020

4. Anthecological features of Lonicera japonica Thunb. in the environments of Southern Uzbekistan

Author:
Kh. K. Djumayev; K. G. Tkachenko
Source:
Trudy po prikladnoj botanike, genetike i selekcii 2021 v.182 no.3 pp. 159-166
ISSN:
2619-0982
Subject:
dichogamy,   etc   ; Lonicera japonica; corolla; essential oils; females; germacrene; males; pistil; Uzbekistan;     Show all 9 Subjects
Abstract:
... Background. Identification of spectacular ornamental perennial lianas for urban landscaping in southern cities is important for modern urban greening programs. The aim of this work was to study flowering peculiarities of Japanese honeysuckle (Lonicera japonica Thunb.).Materials and methods. The target material was honeysuckle plants growing in the environments of Southern Uzbekistan. Observations ...
DOI:
10.30901/2227-8834-2021-3-159-166

5. Is “Esterhazy II”, an Old Walnut Variety in the Hungarian Gene Bank, the Original Genotype?

Author:
Geza Bujdoso; Benjamin Illes; Virag Varjas; Klara Cseke
Source:
Plants 2021 v.10 no.5 pp. -
ISSN:
2223-7747
Subject:
dichogamy,   etc   ; Juglans regia; budbreak; cultivars; gene banks; genotype; phenology; seeds; vegetative propagation; walnuts;     Show all 10 Subjects
Abstract:
... The old walnut (Juglans regia L.) genotype called “Esterhazy II” was well-known in the Austro-Hungarian Monarchy before World War II, and it can still be found in the Austrian, German and Swiss backyard gardens today. Unfortunately, nowadays, vegetatively propagated progenies of the original “Esterhazy II” are not available anymore around the world because walnut grafting started later than this g ...
DOI:
10.3390/plants10050854

6. Morphology and morphogenesis of female reproductive organs in some walnut (Juglans regia L.) genotypes

Author:
Slađana Janković; Jelena Stanković; Dragan Janković; Dragan Milatović
Source:
Scientia horticulturae 2021 v.289 pp. 110471
ISSN:
0304-4238
Subject:
dichogamy,   etc   ; Juglans regia; cultivars; embryo sac; female flowers; females; flowering; genotype; megasporogenesis; morphogenesis; walnuts;     Show all 11 Subjects
Abstract:
... The morphological characteristics of female flowers and their parts in six walnut genotypes were described. The number of female flowers per inflorescence ranged from 1.9 to 2.7. The length and width of female flowers were 8.0–10.1 mm, and 3.4–3.8 mm, respectively. The average length and width of the ovule for all genotypes was 0.55 mm. The largest width of the ovule was 0.59 mm in the cultivar ‘S ...
DOI:
10.1016/j.scienta.2021.110471

7. Investigating the presence of compensatory evolution in dicamba resistant IAA16 mutated kochia (Bassia scoparia)†

Author:
Chenxi Wu; Marta Paciorek; Kang Liu; Sherry LeClere; Alejandro Perez‐Jones; Phil Westra; R Douglas Sammons
Source:
Pest management science 2021 v.77 no.4 pp. 1775-1785
ISSN:
1526-498X
Subject:
dichogamy,   etc   ; Bassia scoparia; coevolution; dicamba; fecundity; greenhouses; herbicide resistance; herkogamy; models; phenology; reproductive fitness; reproductive success; seed dispersal; seed morphology; selfing; vegetative growth;     Show all 16 Subjects
Abstract:
... BACKGROUND: Lack of fitness costs has been reported for multiple herbicide resistance traits, but the underlying evolutionary mechanisms are not well understood. Compensatory evolution that ameliorates resistance costs, has been documented in bacteria and insects but rarely studied in weeds. Dicamba resistant IAA16 (G73N) mutated kochia was previously found to have high fecundity in the absence of ...
DOI:
10.1002/ps.6198

8. Floral scent is different between sexual phases within individuals in a synchronously dichogamous shrub (Canella winterana) but there is no distinct female or male scent profile across individuals

Author:
Hanna Makowski; Cassie Majetic; Patrick Garrett; Sophia Johnson; Paige Schurr; Rich Moore
Source:
Biochemical systematics and ecology 2021 v.96 pp. 104270
ISSN:
0305-1978
Subject:
dichogamy,   etc   ; castration; chemotaxonomy; ecology; females; floral characteristics; flowers; gas chromatography; headspace analysis; males; mass spectrometry; odors; phase transition; pollinators; shrubs; trees; volatile organic compounds;     Show all 17 Subjects
Abstract:
... Floral scent is a highly complex and variable floral characteristic that is involved in pollinator attraction. One possible cause for variation in floral scent can be sexual identity of the flower. Here, we examine the floral scent bouquet of a synchronously dichogamous shrub, Canella winterana (L.) Gaertn.We used dynamic headspace extraction and gas chromatography – mass spectroscopy, followed by ...
DOI:
10.1016/j.bse.2021.104270

9. Hand pollination of global crops – A systematic review

Author:
Annemarie Wurz; Ingo Grass; Teja Tscharntke
Source:
Basic and applied ecology 2021 v.56 pp. 299-321
ISSN:
1439-1791
Subject:
dichogamy,   etc   ; Elaeis guineensis; abortion (plants); agricultural productivity; apples; applied ecology; crop production; employment; fruit quality; fruit set; global change; labor; land use change; pollen; pollination; pollinators; sex ratio; systematic review;     Show all 18 Subjects
Abstract:
... Global pollinator declines and land-use change can lead to pollination limitation with implications for agricultural productivity. Hand pollination is used in agricultural production as a technique to manually pollinate crops. But the prevalence of hand pollination, as well as benefits and costs, remain unknown. We systematically reviewed the literature for examples, methods, drivers, and economic ...
DOI:
10.1016/j.baae.2021.08.008

10. Populations with greater flexibility in floral traits modify mating system in response to the pollinator environment

Author:
Lia Leibman; Anne Rowe; Matthew H. Koski; Laura F. Galloway
Source:
Functional ecology 2018 v.32 no.6 pp. 1457-1466
ISSN:
0269-8463
Subject:
dichogamy,   etc   ; Campanula americana; flowers; habitats; herkogamy; mating systems; outcrossing; plasticity; pollen; pollination; pollinators; selfing;     Show all 12 Subjects
Abstract:
... Mixed mating and variation in outcrossing rate among populations of the same species are common. Outcrossing can be affected by pollinator activity and floral traits that facilitate or impede autonomous self‐fertilization. However, the relative contribution of pollen limitation and evolved differences in the ability to self‐fertilize to variation in the mating system is poorly understood and can o ...
DOI:
10.1111/1365-2435.13093

11. Floral morphology and reproductive biology in selected maple (Acer L.) species (Sapindaceae)

Author:
Aline Rosado; Roy Vera-Vélez; J. Hugo Cota-Sánchez
Source:
Revista brasileira de botânica 2018 v.41 no.2 pp. 361-374
ISSN:
0100-8404
Subject:
dichogamy,   etc   ; Acer; androdioecy; dioecy; evolution; hybrids; monoecy; morphometry; parents; pollination; reproductive success; species diversity; surveys; unisexuality;     Show all 14 Subjects
Abstract:
... This study focuses on variation in reproductive systems in Acer (maple) species, and how Acer might be a useful genus for understanding floral morphology and the evolution of these highly variable systems. The goals were (1) to conduct a survey of reproductive characters in the genus Acer with an emphasis on floral morphometrics of A. ginnala Maxim., A. tataricum L., and the hybrid A. ginnala × ta ...
DOI:
10.1007/s40415-018-0452-1

12. Spatiotemporal variation in the pollination systems of a supergeneralist plant: is Angelica sylvestris (Apiaceae) locally adapted to its most effective pollinators?

Author:
Marcin Zych; Robert R Junker; Massimo Nepi; Małgorzata Stpiczyńska; Barbara Stolarska; Katarzyna Roguz
Source:
Annals of botany 2019 v.123 no.2 pp. 415-428
ISSN:
1095-8290
Subject:
dichogamy,   etc   ; Angelica; Coleoptera; Diptera; color; ecotypes; evolution; flowers; insect pollination; nectar; odors; ovules; pollen loads; pollinating insects; reproductive performance; reproductive success; spatial variation; taxonomy; temporal variation; umbels;     Show all 20 Subjects
Abstract:
... In terms of pollination systems, umbellifers (plants of the carrot family, Apiaceae) are regarded as generalists, since their (usually dichogamous) flowers are visited by a wide range of insects representing several taxonomic orders. However, recent analyses of insect effectiveness revealed that these plants may be pollinated effectively by a narrow assemblage of insect visitors. Of particular int ...
DOI:
10.1093/aob/mcy140
PubMed:
30059963
PubMed Central:
PMC6344219

13. Population structure and reproductive biology of peyote (Lophophora diffusa, Cactaceae), a threatened species with pollen limitation¹,

Author:
María Isabel Briseño-Sánchez; Concepción Martínez-Peralta; María C. Mandujano
Source:
Journal of the Torrey Botanical Society 2020 v.147 no.3 pp. 243-257
ISSN:
1940-0616
Subject:
dichogamy,   etc   ; Lophophora; adults; cacti and succulents; effective population size; flower morphology; fruit set; fruits; herkogamy; longevity; mortality; natural regeneration; outcrossing; ovules; pistil; pollen; pollination; pollinators; population structure; reproductive success; seed set; species recruitment; threatened species; tourism;     Show all 24 Subjects
Abstract:
... Threatened species frequently have a J-shaped population structure, which indicates a reduction in seed set and poor or nonexistent recruitment. Altered population structures may be due to disrupted demographic processes that result in low reproductive success or small population size. Peyote—Lophophora diffusa Croizat (Bravo)—is a rare, threatened cactus species that is subject to overexploitatio ...
DOI:
10.3159/TORREY-D-18-00055.1

14. Floral trait variation and links to climate in the mixed-mating annual Clarkia pulchella

Author:
Devin E. Gamble; Megan Bontrager; Amy L. Angert
Source:
Botany 2018 v.96 no.7 pp. 425-435
ISSN:
1916-2804
Subject:
dichogamy,   etc   ; Clarkia pulchella; atmospheric precipitation; climate; corolla; drought; evolution; growth chambers; herkogamy; intraspecific variation; mating systems; phenology; pollinators; self-pollination; selfing; soil water; temperature; winter;     Show all 18 Subjects
Abstract:
... The benefits of self-fertilization can vary across environments, leading to selection for different reproductive strategies and influencing the evolution of floral traits. Although stressful conditions have been suggested to favour self-pollination, the role of climate as a driver of mating-system variation is generally not well understood. Here, we investigate the contributions of local climate t ...
DOI:
10.1139/cjb-2017-0234

15. Could seasonally deteriorating environments favour the evolution of autogamous selfing and a drought escape physiology through indirect selection? A test of the time limitation hypothesis using artificial selection in Clarkia

Author:
Simon K Emms; Alisa A Hove; Leah S Dudley; Susan J Mazer; Amy S Verhoeven
Source:
Annals of botany 2018 v.121 no.4 pp. 753-766
ISSN:
1095-8290
Subject:
dichogamy,   etc   ; Clarkia unguiculata; artificial selection; autogamy; drought; evolution; females; flowering date; gas exchange; greenhouse production; herkogamy; life history; mating systems; outcrossing; pollen; selfing; water use efficiency;     Show all 17 Subjects
Abstract:
... The evolution of selfing from outcrossing may be the most common transition in plant reproductive systems and is associated with a variety of ecological circumstances and life history strategies. The most widely discussed explanation for these associations is the reproductive assurance hypothesis – the proposition that selfing is favoured because it increases female fitness when outcross pollen re ...
DOI:
10.1093/aob/mcx197
PubMed:
29351591
PubMed Central:
PMC5853010

16. At the beginning and at the end: Combined mechanisms of prior and delayed self-pollination interact to make a “winner” species

Author:
Arthur Domingos-Melo; Tarcila de Lima Nadia; Isabel Cristina Machado
Source:
Flora 2018 v.249 pp. 24-30
ISSN:
0367-2530
Subject:
dichogamy,   etc   ; Sida cordifolia; autogamy; cross pollination; experimental design; flowering; fruits; herkogamy; models; morphometry; reproductive success; reproductive system; weeds;     Show all 13 Subjects
Abstract:
... Reproduction is key to determine the success of “winner” species. Plants that have an autogamous reproductive system to ensure their reproduction, but which maintain the possibility of cross-pollination, are the most flexible. Here, we aimed at understanding how those mechanisms occur in Sida cordifolia, an introduced pantropical weed. We recorded self-pollination mechanisms, monitored flower anth ...
DOI:
10.1016/j.flora.2018.09.007

17. Embryology of Iris sanguinea Donn ex Horn. and its systematic relationship

Author:
Lijuan Fan; Karl H. Hasenstein; Ling Wang
Source:
Journal of forestry research 2019 v.30 no.6 pp. 2007-2020
ISSN:
1007-662X
Subject:
dichogamy,   etc   ; Iridaceae; Polygonum; anthers; breeding; carpels; cold tolerance; color; cytokinesis; dormancy; eggs; embryo sac; embryogenesis; embryology; endosperm; females; flower buds; flowering; gametogenesis; gametophytes; herbs; males; megaspores; meiosis; microsporocytes; placenta; pollen; pollen tubes; pollination; spermatozoa; sporulation; temperature; vegetative growth;     Show all 33 Subjects
Abstract:
... Iris sangumea Dorm ex Horn. is a perennial cold-tolerant herbs of the Iris genus of Iridaceae, which has a well-formed, bright color and adaptability. Through understanding the flower bud differentiation, Sporogenesis, gametogenesis, fertilization and embryogenesis of I. sangumea, we developed flowering regulation and control breeding. I. sangumea flower bud differentiation was observed in April f ...
DOI:
10.1007/s11676-019-01039-z

18. Re-emergence of Lilium callosum Sieb. et Zucc. in Taiwan after a fire allows propagation and renews the possibility of conservation

Author:
Ying Chun Chen; Yang Jung Huang; Chiu Mei Wang; Chin An Chiu; Huey Ling Lin; Pei Fang Lee; Ya Ming Cheng; Chen Chang
Source:
Botanical studies 2017 v.58 no.1 pp. 47
ISSN:
1999-3110
Subject:
dichogamy,   etc   ; Lilium; climate; flowering date; flowers; germplasm; habitats; internal transcribed spacers; karyotyping; ovules; phylogeny; pollen; pollination; progeny; rare species; temperature; vegetation; Taiwan;     Show all 18 Subjects
Abstract:
... BACKGROUND: Lilium callosum is native to Taiwan, but little is known about it since it has been considered extinct since 1915. After the rediscovery of this rare species after a fire in 2011 in Tunghsiao Township, intensive work has been conducted to count the number in the wild population, to develop a conservation strategy, and to understand its reproductive characteristics and even economic pot ...
DOI:
10.1186/s40529-017-0202-x
PubMed:
29134290
PubMed Central:
PMC5684056

19. Flowering of hazelnut cultivars and how it relates to temperature in southern Ontario

Author:
T. Taghavi; A. Dale; P. Saxena; D. Garlic; A. Rahemi; J. Kelly; E. Suarez
Source:
Acta horticulturae 2018 v. no.1226 pp. 131-136
ISSN:
0567-7572
Subject:
dichogamy,   etc   ; Corylus avellana; catkins; pollen; cross pollination; freezing; wind; hazelnuts; flowering date; genotype; climate; cultivars; male flowers; autumn; monoecy; temperature; frost; female flowers; spring; genetic variation; heat sums; Ontario;     Show all 22 Subjects
Abstract:
... Hazelnuts (Corylus avellana) are monoecious, wind-pollinated, and self-incompatible, which guarantees cross-pollination and genetic diversity. Also, they are dichogamous, and in many locations male flowers open earlier than female flowers. Pollination starts with catkin elongation, differentiation of anthers, and release of pollen, which spreads with wind. Flowering can happen in late fall through ...
DOI:
10.17660/ActaHortic.2018.1226.18

20. Pollen and stamen mimicry: the alpine flora as a case study

Author:
Klaus Lunau; Sabine Konzmann; Lena Winter; Vanessa Kamphausen; Zong-Xin Ren
Source:
Arthropod-plant interactions 2017 v.11 no.3 pp. 427-447
ISSN:
1872-8855
Subject:
dichogamy,   etc   ; pollination; morphs; photographs; corolla; evolution; lips; pollinators; models; flora; bees; pistil; color; progeny; Angiospermae; case studies; pollen; hairs; Alps region;     Show all 19 Subjects
Abstract:
... Many melittophilous flowers display yellow and UV-absorbing floral guides that resemble the most common colour of pollen and anthers. The yellow coloured anthers and pollen and the similarly coloured flower guides are described as key features of a pollen and stamen mimicry system. In this study, we investigated the entire angiosperm flora of the Alps with regard to visually displayed pollen and f ...
DOI:
10.1007/s11829-017-9525-5