scholarly journals Production of interspecific hybrids between commercial cultivars of the eggplant (Solanum melongena L.) and its wild relative S. torvum

2013 ◽  
Vol 12 (1) ◽  
pp. 755-764 ◽  
Author(s):  
J. Kumchai ◽  
Y.-C. Wei ◽  
C.-Y. Lee ◽  
F.-C. Chen ◽  
S.-W. Chin
Keyword(s):  
Interspecific Hybrids ◽  
Solanum Melongena ◽  
Wild Relative ◽  
Commercial Cultivars

scholarly journals Line × Tester Analysis for Morphological and Fruit Biochemical Traits in Eggplant (Solanum melongena L.) Using Wild Relatives as Testers

Agronomy ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 185 ◽  
Author(s):  
Kaushik
Keyword(s):  
Combining Ability ◽  
Interspecific Hybrids ◽  
Genetic Improvement ◽  
Morphological Traits ◽  
Genetic Basis ◽  
Solanum Melongena ◽  
General Combining Ability ◽  
Wild Relatives ◽  
Biochemical Traits ◽  
Positive Heterosis

Wild relatives of eggplant are commonly exploited for eggplant improvement, but the genetic improvement relies on the information of the genetic basis of inheritance of traits. In this study, two eggplant lines, one with oriental and another with occidental cytoplasm, were crossed with four testers representing three wild species, namely, Solanum insanum, S.anguivi, and S. lichtensteinii. The Line × Tester cross produced a total of eight interspecific hybrids. Parents and their hybrids were evaluated for 3 biochemical, 12 morphological, and 8 Tomato Analyzer-based descriptors. A significant amount of variation was noticed for all 23 traits studied. The higher values for the specific combining ability (SCA) component were determined as compared to the general combining ability (GCA) component. The testers were more significant for most of the traits than the cultivated varieties. Positive heterosis was determined for the 12 characteristics and negative heterosis for the 11 attributes. Overall, S.anguivi, and S. lichtensteinii were better for the biochemical traits’ improvement, whereas S. insanum was a better tester for the morphological traits.

scholarly journals Characterization of spermidine hydroxycinnamoyl transferases from eggplant (Solanum melongena L.) and its wild relative Solanum richardii Dunal

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Hui Peng ◽  
Tianbao Yang ◽  
Bruce D Whitaker ◽  
Frances Trouth ◽  
Lingfei Shangguan ◽  
...  
Keyword(s):  
Solanum Melongena ◽  
Wild Relative

scholarly journals Vigor forIn VitroCulture Traits inS. melongena  ×  S. aethiopicumHybrids with Potential as Rootstocks for Eggplant

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Irene Calvo-Asensio ◽  
Jaime Prohens ◽  
Carmina Gisbert
Keyword(s):  
Basic Science ◽  
Interspecific Hybrids ◽  
Science Studies ◽  
Solanum Melongena ◽  
Leaf Explants ◽  
Culture Conditions ◽  
Regeneration Capacity ◽  
Rooting Ability ◽  
Micropropagated Plants

Hybrids ofSolanum melongenaandS. aethiopicumare of interest as rootstocks of eggplant, as they are highly vigorous and can incorporate resistance to several diseases. However, hybridization between both species is difficult. Therefore, protocols forin vitroculture are of great interest for their micropropagation and biotechnological breeding. We assessed the organogenesis response from leaf explants in four interspecific hybrids and in their parents testing two organogenic media: SIM-A, containing 6-benzylaminopurine and kinetin, and SIM-B, which contains thidiazuron. A higher regeneration capacity in the hybrids compared to their parents was observed. Whereas in interspecific hybrids and in one accession ofS. melongenasimilar regeneration rates were observed for SIM-A and SIM-B, higher regeneration was found in the rest of genotypes when thidiazuron was used. Rooting ability in the interspecific hybrids was lower inin vitromicropropagated plants (35–60%) than in plants regenerated from explants (100%). The addition of indolbutiric acid (1 mg L−1) induced roots in nonrooted genotypes. In summary, we have adjustedin vitroculture conditions for regenerating and rootingS. melongena×S. aethiopicumhybrids. We have also demonstrated that these hybrids are heterotic for regeneration, which may be of interest for basic science studies.

Genotypic variation in proanthocyanidin status in the Leucaena genus

2002 ◽  
Vol 138 (2) ◽  
pp. 209-220 ◽  
Author(s):  
S. A. DALZELL ◽  
H. M. SHELTON
Keyword(s):  
Regression Analysis ◽  
Interspecific Hybrids ◽  
Dry Matter ◽  
Genotypic Variation ◽  
Genetic Regulation ◽  
Plant Defence ◽  
Interspecific Variation ◽  
Experimental Conditions ◽  
Commercial Cultivars ◽  
Very High

The proanthocyanidin (PA) status of 116 accessions from the Leucaena genus representing 21 species, 6 subspecies, 3 varieties and 4 interspecific hybrids was evaluated under uniform environmental and experimental conditions at Redland Bay, Queensland, Australia in October 1997. The PA content of lyophilized youngest fully expanded leaves was measured spectrophotometrically by the butanol/HCl assay referenced to L. leucocephala ssp. glabrata standard PA and expressed as L. leucocephala ssp. glabrata PA equivalents (LLPAE). Considerable interspecific variation in PA concentration existed within the genus, ranging from 0–339 g LLPAE/kg dry matter (DM). Taxa including L. confertiflora, L. cuspidata, L. esculenta and L. greggii contained very high (>180 g LLPAE/kg DM) PA concentrations. Similarly, many agronomically superior accessions from L. diversifolia, L. pallida and L. trichandra contained extremely high (up to 250 g LLPAE/kg DM) PA concentrations, although these taxa exhibited wide intraspecific variation in PA content offering the potential to select accessions with lower (120–160 g LLPAE/kg DM) PA content. Commercial cultivars of L. leucocephala ssp. glabrata, known to produce forage of superior quality, contained low amounts of PA (33–39 g LLPAE/kg DM). Artificial interspecific hybrids had PA contents intermediate to those of both parents. Lesser-known taxa, including L. collinsii, L. lanceolata, L. lempirana, L. macrophylla, L. magnifica, L. multicapitula, L. salvadorensis and L. trichodes, contained undetectable to low (0–36 g LLPAE/kg DM) quantities of PA and have potential as parents to breed interspecific hybrids of low PA status and superior forage quality. Extractable PA was the dominant PA component, accounting for 91% of total PA within the genus. Regression analysis of accession ranks from different experiments compared to these results indicated that genetic regulation of Leucaena spp. PA content was consistent (P<0·01) under different edapho-climatic environments. The distribution of PA within the Leucaena genus did not concur with the predictions of various evolutionary and phylogenetic plant defence theories.

scholarly journals Effects of Grafting on Morphophysiological and Yield Characteristic of Eggplant (Solanum melongena L.) Grafted onto Wild Relative Rootstocks

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1583
Author(s):  
Ibrahim Musa ◽  
Mohd Y. Rafii ◽  
Khairulmazmi Ahmad ◽  
Shairul Izan Ramlee ◽  
Muhammad Asyraf Md Hatta ◽  
...  
Keyword(s):  
Solanum Melongena ◽  
Fruit Weight ◽  
Fruit Yield ◽  
High Rate ◽  
Growth And Yield ◽  
Vegetable Production ◽  
Wild Relative ◽  
Marketable Yield ◽  
Marketable Fruit ◽  
Graft Success

Grafting is regarded as an integral component of sustainable vegetable production. It is important in the management of soil-borne diseases, and reports suggest that grafting with viable rootstocks can enhance crop growth and yield. This research was conducted using splices and cleft grafting techniques to investigate graft compatibility among varieties of high yielding eggplant scion (MCV1, MCV2, CCV1, CCV2, CCV3, NCV, and TCV) grafted onto wild rootstocks (MWR, BWR, and TWR) to study their morphophysiological and yield characteristics. High yielding scions grafted onto wild relative rootstocks were compared with two controls including self-grafted and non-grafted. All the scion had a high rate of germination (≥95%) and remarkable graft success (100%) was recorded in MCV1, MCV2, and TCV using the cleft techniques. Generally, the use of rootstocks resulted in higher total and marketable fruit yield compared to the non-grafted and self-grafted scion plants, respectively. In particular, MWR and TWR rootstock conferred the highest vigour to the scion, resulting in the highest values recorded for total and marketable fruit yield, number of fruits per plant and average fruit weight. A similar result was obtained in fruit length and diameter, where long and wide fruits were observed in scions grafted onto MWR and TWR rootstocks, respectively. Grafting of high yielding eggplant scion onto resistant MWR, BWR and TWR eggplant rootstock was found to be beneficial for eggplant cultivation. The remarkable compatibility and vigour of the rootstock with scion led to the improvement in total and marketable yield of the fruits. As such, it can be concluded that the use of wild relative rootstocks of eggplant species can be a valuable method of improving eggplant production.

scholarly journals Molecular and embryonic evidence of apomixis in cassava interspecific hybrids (Manihot spp.)

1998 ◽  
Vol 78 (2) ◽  
pp. 349-352 ◽  
Author(s):  
Nagib M. A. Nassar ◽  
Marco Andre Vieira ◽  
Clibas Vieira ◽  
Dario Grattapaglia
Keyword(s):  
Key Words ◽  
Vegetative Propagation ◽  
Interspecific Hybrid ◽  
Interspecific Hybrids ◽  
Rapd Markers ◽  
Maternal Inheritance ◽  
Interspecific Cross ◽  
Wild Relative

In cassava, apomixis could fix hetereozygosity and prevent the transmission of systemic pathogens which complicate vegetative propagation of the crop. Evidence from maternal inheritance of RAPD markers and the structure of the embryonic sac in large progeny sets of two distinct genotypes have further confirmed that apomixis occurs in cassava. Here, we have built on an earlier report of apomixis in cassava in four ways (1) we estimated the rate of faculative apomixis in the range of 2% (2) we detected the occurrence of apomixis in a second genotype, derived form a different interspecific cross; (3) apomictic behavior was demonstrated in an F1 individual and (4) embryonic evidence showed that the mode of apomixis is aposporic. Since apomixis was detected in an F1 interspecific hybrid it is possible that genes for apomixis could be transferred directly to cultivated cassava from a wild relative. Key words: Cassava, interspecific hybrid

Characterization of interspecific hybrids and first backcross generations from crosses between two cultivated eggplants (Solanum melongena and S. aethiopicum Kumba group) and implications for eggplant breeding

Euphytica ◽  
2012 ◽  
Vol 186 (2) ◽  
pp. 517-538 ◽  
Author(s):  
Jaime Prohens ◽  
Mariola Plazas ◽  
María D. Raigón ◽  
José M. Seguí-Simarro ◽  
John R. Stommel ◽  
...  
Keyword(s):  
Interspecific Hybrids ◽  
Solanum Melongena

scholarly journals Development of Interspecific Hybrids between a Cultivated Eggplant Resistant to Bacterial Wilt (Ralstonia solanacearum) and Eggplant Wild Relatives for the Development of Rootstocks

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1405
Author(s):  
Mohamed Rakha ◽  
Ahmed Namisy ◽  
Jaw-Rong Chen ◽  
Mohammed E. El-Mahrouk ◽  
Elmahdy Metwally ◽  
...  
Keyword(s):  
Bacterial Wilt ◽  
Interspecific Hybrid ◽  
Interspecific Hybrids ◽  
Embryo Rescue ◽  
Solanum Melongena ◽  
Wild Relatives ◽  
Interspecific Crosses ◽  
Viable Seeds ◽  
Wild Accessions ◽  
Moderately Resistant

Bacterial wilt caused by Ralstonia solanacerum is one of the most economically and destructive eggplant diseases in many tropical and subtropical areas of the world. The objectives of this study were to develop interspecific hybrids, as potential rootstocks, between the eggplant (Solanum melongena) bacterial wilt resistant line EG203 and four wild accessions (S. incanum UPV1, S. insanum UPV2, S.anguivi UPV3, and S. sisymbriifolium UPV4), and to evaluate interspecific hybrids along with parents for resistance to bacterial wilt strains Pss97 and Pss2016. EG203 was crossed successfully with wild accessions UPV2 and UPV3 and produced viable seeds that germinated when wild accessions were used as a maternal parent in the crosses. In addition, viable interspecific hybrids between EG203 and UPV1 were obtained in both directions of the hybridization, although embryo rescue had to be used. Hybridity was confirmed in the four developed interspecific hybrid combinations with three SSR markers. EG203 was resistant to both strains Pss97 and Pss2016, while UPV1 and UPV3 were, respectively, resistant and moderately resistant to Pss2016. The four interspecific hybrids with UPV2, UPV3, and UPV1 were susceptible to both bacterial wilt strains, indicating that the resistance of EG203, UPV1, and UPV3 behaves as recessive in interspecific crosses. However, given the vigor of interspecific hybrids between eggplant and the three cultivated wild species, these hybrids may be of interest as rootstocks. However, the development of interspecific hybrid rootstocks resistant to bacterial wilt will probably require the identification of new sources of dominant resistance to this pathogen in the eggplant wild relatives.

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