Interspecific Hybridization between Lathyrus odoratus and L. belinensis

Hammett, K. R. W.; Murray, B. G.; Markham, Kenneth R.; Hallett, Ian C.

doi:10.1086/297216

Cited by 23 publications

(16 citation statements)

References 10 publications

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“…Studies on the petal and sepal epidermal micromorphology of leguminous species are rather limited (Christensen and Hansen, 1998;Hammett et al, 1994;Ojeda et al, 2009;Stirton, 1981). Stirton (1981) examined the lateral petals of the papilionoids.…”

Section: Petal Micromorphologymentioning

confidence: 99%

“…Stirton (1981) examined the lateral petals of the papilionoids. Hammett et al (1994) reported the epidermal type of the dorsal and lateral petals in 2 Lathyrus species, and Ojeda et al (2009) reported the epidermal types on the dorsal, lateral, and ventral petals of 7 species of the same genus. Except for L. sativus, the petal, and sepal micromorphology of L. chloranthus, L. digitatus, L. laxiflorus subsp.…”

Section: Petal Micromorphologymentioning

confidence: 99%

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Petal and Sepal Epidermal Micromorphology of Six Lathyrus Taxa (Fabaceae) and their Systematic Value

Cildir

Kahraman

Doğan

2012

Not Bot Hort Agrobot Cluj

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In this study, the epidermal types and their distribution on dorsal and lateral petals, the trichome types and their density on sepals of Lathyrus chloranthus, L. digitatus, L. laxiflorus subsp. laxiflorus, L. roseus subsp. roseus, L. sativus, and L. tuberosus, belonging to sections Lathyrus, Lathyrostylis, Pratensis, and Orobon of the genus Lathyrus in Turkey were investigated using light microscopy (LM) and scanning electron microscopy (SEM), and the systematic significance of these characters was evaluated. These taxa, except L. sativus, are studied for the first time under aspects of the petal and sepal micromorphology. Three major epidermal types were recognized on the petal: tabular rugose striate cells (TRS), areolate cells with more or less striations (AS), and papillose conical striate cells (PCS). TRS and AS were further subdivided into three subtypes. TRS was found on the dorsal and lateral petals of L. chloranthus, L. sativus, and L. tuberosus: the dorsal petals of L. roseus subsp. roseus and the lateral petals of L. laxiflorus subsp. laxiflorus, while AS was present on the dorsal and lateral petals of L. digitatus and the lateral petals of L. roseus subsp. roseus. PCS was found only on the dorsal petals of L. digitatus. Three main types of trichomes on the sepal were observed: peltate glandular, capitate glandular, and nonglandular trichomes. The capitate glandular and nonglandular trichomes were further subdivided into three subtypes. The peltate glandular trichomes were present only in L. chloranthus, but absent in the others. The capitate glandular trichomes were found in L. chloranthus, L. laxiflorus subsp. laxiflorus, L. roseus subsp. roseus, and L. tuberosus. The nonglandular trichomes were always present in L. chloranthus and L. laxiflorus subsp. laxiflorus. The present results show that the petal and sepal micromorphology can be used in delimitation of the taxa based on petal and sepal micromorphology.

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Section: Petal Micromorphologymentioning

confidence: 99%

Section: Petal Micromorphologymentioning

confidence: 99%

Petal and Sepal Epidermal Micromorphology of Six Lathyrus Taxa (Fabaceae) and their Systematic Value

Cildir

Kahraman

Doğan

2012

Not Bot Hort Agrobot Cluj

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“…Similarly, there are strong discrepancies concerning the meiotic behaviour of some species. Some authors have described regular meiosis in all the taxa analysed (Winge 1919;Roy and Singh 1968;Murray et al 1989Murray et al , 1992Hammett et al 1994;SchifinoWittmann et al 1994), whereas others have reported the occurrence of abundant chromosome abnormalities (Datta 1955;Roy and Singh 1968;Kumar and Sinha 1991;Seijo and Solís Neffa 2006).…”

Section: Introductionmentioning

confidence: 98%

Structural karyotypic variability and polyploidy in natural populations of the South American Lathyrus nervosus Lam. (Fabaceae)

et al. 2012

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Knowledge of the chromosome variation in wild populations is essential to understand the pathways and restrictions of karyotype evolution in plants. The aim of this study is to conduct an intraspecific analysis of the karyotypes by fluorochrome banding and ribosomal DNA (rDNA) loci detection by fluorescent in situ hybridization (FISH) and of the meiotic behaviour in natural populations of Lathyrus nervosus, sect. Notolathyrus. Chromosome banding showed that, despite the high constancy in the karyotype formula and in the rDNA loci among populations, there is intraspecific variation in the amount and distribution pattern of 4',6-diamidino-2-phenylindole (DAPI ? ) heterochromatin. However, those changes were not related to the total chromosome length of the haploid complements. This fact demonstrates that structural chromosome changes may be one of the most important mechanisms for karyotype variation among natural populations of L. nervosus. The chromosome number surveyed at the population level revealed the first case of polyploidy in South American species and the first case of uneven polyploidy of the genus. All the chromosome markers analysed indicated that the polyploids found originated by autopolyploidy. The meiotic analysis showed different chromosome abnormalities that may be generating numerical and structural changes in the sporads. The finding of unreduced gametes that are alive at anthesis suggests sexual polyploidization as the most probable mechanism involved in the origin of these 3x and 4x autopolyploid cytotypes in L. nervosus.

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“…Recently, many successful cases have been reported in the production of interspeci c hybrids in various genera of ornamental crops such as Primula (Kato and Mii 2000;Kato et al 2001), Kalanchoe (Izumikawa et al 2008), Limonium (Morgan et al 1998) and Chrysanthemum (Cheng et al 2010). In Torenia fournieri (Endo 1962) and Lathyrus odoratus (Brouillard 1983;Hammett et al 1994), interspeci c hybridization has also been conducted for producing yellow ower hybrids, which resulted in either intermediate ower colors between the parents or entirely di erent colors from both parents. In the present study, we have con rmed the expression of yellow color of B. pearcei to some extent showing new ower colors such as apricot, light yellow in all the interspeci c hybrid plants that bloomed already (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

Interspecific hybridization of Begonia semperflorens (section Begonia) with B. pearcei (section Eupetalum) for introducing yellow flower color

Chen

Mii

2012

Plant Biotechnology

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α-naphthylacetic acid, 0.1 mg l −1 6-benzyladenine, 2.5 g l −1 gellan gum, and 10 mg l −1 gibberellic acid. Although all the cross combinations yielded plantlets at the plantlet yielding e ciency of 0.1-2.6/ovary in the culture of mature seeds, some cross combinations gave higher plantlet yields up to 5.7/ovary when immature seeds of 12-16 days a er pollination were cultured. e plantlets obtained were con rmed their hybridity through ow cytometric analysis and random ampli ed polymorphic DNA analysis. In the crosses using diploid B. semper orens hybrids with normal genome combinations (SP genome) and chromosome doubled hybrids with SSPP genome were obtained, whereas only normal triploid hybrids (SSP genome) were produced from the cross with tetraploid B. semper orens. Some owered hybrids of SP and SSP genomes showed intermediate ower colors between the parents such as apricot, cream and light yellow colors, suggesting the expression of yellow ower color of B. pearcei. Although the pollen fertility of those interspeci c hybrids was sterile, they are expected to utilize as the important breeding materials to produce yellow ower cultivars of B. semper orens a er restoring the fertility by chromosome doubling treatments.

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Interspecific Hybridization between Lathyrus odoratus and L. belinensis

Cited by 23 publications

References 10 publications

Petal and Sepal Epidermal Micromorphology of Six Lathyrus Taxa (Fabaceae) and their Systematic Value

Petal and Sepal Epidermal Micromorphology of Six Lathyrus Taxa (Fabaceae) and their Systematic Value

Structural karyotypic variability and polyploidy in natural populations of the South American Lathyrus nervosus Lam. (Fabaceae)

Interspecific hybridization of Begonia semperflorens (section Begonia) with B. pearcei (section Eupetalum) for introducing yellow flower color

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