Generation of interspecific hybrids between Trifolium vesiculosum and T. alexandrinum using embryo rescue

Kaur, Ajinder; Kaur, Kamal Preet; Kalia, Anu; Rani, Upasana; Kahlon, Jagroop Gill; Sharma, Rajesh; Malaviya, D. R.; Kapoor, Rahul; Sandhu, Jagdeep Singh

doi:10.1007/s10681-017-2042-x

Cited by 9 publications

(9 citation statements)

References 39 publications

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“…In the present study, T. alexandrinum was successfully crossed with T. resupinatum , T. vesiculosum , T. echinatum , T. subterraneum and T. lappaceum and the interspecific hybrids were developed through embryo rescue. Of these, the first two were reported earlier (Kaur et al., ; Kaushal et al., ), whereas the latter three are the new interspecific hybrids reported in this study. Even in the first two crosses reported earlier, the female parent used was different ecotype.…”

Section: Discussionsupporting

confidence: 51%

“…Interspecific hybridization using Egyptian clover as female parent was reported in a few earlier studies but with limited success (Evans, ; Selim, Abdel‐Tawab, & Fahmy, ; Trimble & Hovin, ). A few interspecific hybrids of T. alexandrinum have also been developed by this group (Kaur et al., ; Kaushal, Malaviya, Roy, Kumar, & Tiwari, ; Malaviya, Roy, Kaushal, Kumar, & Tiwari, ; Roy, Malaviya, Kaushal, Kumar, & Tiwari, ). Nevertheless, comprehensive information on the interspecies incompatibility barriers of T. alexandrinum with other potential donor Trifolium species is not available.…”

Section: Introductionmentioning

confidence: 99%

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Interspecific compatibility barriers, development of interspecific hybrids through embryo rescue and lineage ofTrifolium alexandrinum(Egyptian clover)—important tropical forage legume

et al. 2018

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Genetic improvement of Trifolium alexandrinum L. is hampered because of narrow genetic base and lack of interspecies compatibility information. The study was envisaged to understand the interspecies incompatibility and the affinity between T. alexandrinum and 22 species of the genus representing different sections and to develop interspecific crosses. Development of interspecific hybrids with T. resupinatum, T. lappaceum, T. subterraneum, T. vesiculosum and T. echinatum, through embryo rescue, revealed their affinity with T. alexandrinum. Failure of pollen germination or restricted pollen tube growth showed its distant relatedness with T. clypeatum, T. balansae, T. purpureum, T. leucanthum, T. hirtum, T. pilulare and T. hybridum. Pollen tubes reached up to ovule among the crosses with T. alpestre, T. repens and T. nigrescens, whereas it travelled up to ovary among the crosses with T. angustifolium, T. grandiflorum and T. dasyurum indicating need of manipulation to overcome barrier. Thus, incompatibility of T. alexandrinum with many Trifolium species could be overcome through embryo rescue with intensive crossing. Egyptian clover ecotype ‘Fahli’ was more compatible with other species than ‘Mescavi’.

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Section: Discussionsupporting

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Interspecific compatibility barriers, development of interspecific hybrids through embryo rescue and lineage ofTrifolium alexandrinum(Egyptian clover)—important tropical forage legume

et al. 2018

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“…Inter-specific hybridization have been used to improve resistance to biotic and abiotic stresses and extended length of the vegetative period because genes for wide scale adaptability are widely distributed in several wild species of Trifolium ( Table 3). Interspecific hybrids of berseem with Trifolium apertum [31], T. constantinopolitanum [32], T. resupinatum [33] and T. vesiculosum [34] were successfully developed and progenies of interspecific hybrids showed introgression of various desirable traits, including late flowering and resistance to root rot and stem rot diseases.…”

Section: Problems Associated With Breeding Of Tropical Forage Legumesmentioning

confidence: 99%

“…Major success in Berseem breeding was achieved by induction of longer duration mutant in Mescavi variety through gamma ray treatment which resulted in 'BL-22' a variety released T. alexandrinum ecotype Saidi 2n = 16 Annual, 2-3 cut, stem and basal branching [78] T. berytheum 2n = 16 Biotic resistance [79] T. salmoneum 2n = 16 Biotic resistance [79] T. apertum 2n = 16 Annual, profuse basal branching, late flowering, resistance against root rot and stem rot, high protein content [31,79] T. meironense 2n = 16 Biotic resistance [31] T. resupinatum 2n = 16 Root rot and stem rot resistance, soil alkalinity tolerance [33,80] T. constantinopolitanum 2n = 16 Profuse basal branching, resistance against root rot and stem rot [32] T. vesiculosum 2n = 16 Lateness, disease resistance [25] [38][39][40]. Embryo rescue technique has been effectively utilized to overcome the problems of post fertilization barriers in interspecific crosses of berseem with Trifolium apertum, T. constantinopolitanum, T. resupinatum and T. vesiculosum [31][32][33][34]. Recently, SSR based markers were developed for large scale utilization programme in Berseem [30].…”

Section: Problems Associated With Breeding Of Tropical Forage Legumesmentioning

confidence: 99%

Tropical Forage Legumes in India: Status and Scope for Sustaining Livestock Production

Singh¹,

Ramakrishnan²,

Mahanta³

et al. 2019

Forage Groups

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Livestock contributes enormously in food and nutritional security apart from livelihood security to rural population all over the world. India has the largest number of livestock, representing over 17% of world population. Availability of forage legumes is essential for better animal health, production and increasing the nutritive value of forage-based rations, besides providing a source of biological nitrogen fixation for enriching soil, reducing land degradation and mitigating climate change. However, supply of quality green fodder in India is extremely precarious, and the gap is huge against demand. The major fodder legume crops cultivated in India are Medicago sativa, Trifolium alexandrinum, Vigna unguiculata, Vigna umbellate and range legumes are Stylosanthes spp., Desmanthus virgatus, and Clitoria ternatea. Indian subcontinent represents wide spectrum of eco-climates and reported diversity of 21 forage legumes genera viz., Desmodium, Lablab, Stylosanthes, Vigna, Macroptelium, Centrosema and browse plants Leucaena, Sesbania, Albizia, Bauhinia, Cassia, Grewia, etc. Diversity of forage legumes were collected (>3200 accessions), evaluated and sources for different biotic and abiotic stress tolerance were identified, apart from >50 cultivars developed. Considering these aspects, tropical legumes for livestock production, soil health and ecosystem services, diversity, evaluation and breeding for improved varieties are discussed in this chapter.

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“…), other types of forage legumes have been studied and adapted. Egyptian is a high-yielding, nutritious, coolseason forage crop that can grow on a wide range of soils, though it prefers fertile [17,18]. Egyptian clover can withstand some drought and short periods of waterlogging [19].…”

Section: Introductionmentioning

confidence: 99%

Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions

2021

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Cereal-legume intercropping is important in many low-input agricultural systems. Interactions between combinations of different plant species vary widely. Field experiments were conducted to determine yield formation regularities and plant competition effects of oat (Avena sativa L.)–black medick (Medicago lupulina L.), oat–white clover (Trifolium repens L.), and oat–Egyptian clover (T. alexandrinum L.) under organic farming conditions. Oats and forage legumes were grown in mono- and intercrops. Aboveground dry matter (DM) measured at flowering, development of fruit and ripened grain, productivity indicators, oat grain yield and nutrient content were established. The results showed that oats dominated in the intercropping systems. Oat competitive performance (CPo), which is characterized by forage legumes aboveground mass reduction compared to monocrops, were 91.4–98.9. As the oats ripened, its competitiveness tendency to declined. In oat–forage legume intercropping systems, the mass of weeds was significantly lower compared to the legume monocrops. Oats and forage legumes competed for P, but N and K accumulation in biomass was not significantly affected. We concluded that, in relay intercrop, under favourable conditions, the forage legumes easily adapted to the growth rhythm and intensity of oats and does not adverse effect on their grain yield.

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Generation of interspecific hybrids between Trifolium vesiculosum and T. alexandrinum using embryo rescue

Cited by 9 publications

References 39 publications

Interspecific compatibility barriers, development of interspecific hybrids through embryo rescue and lineage ofTrifolium alexandrinum(Egyptian clover)—important tropical forage legume

Interspecific compatibility barriers, development of interspecific hybrids through embryo rescue and lineage ofTrifolium alexandrinum(Egyptian clover)—important tropical forage legume

Tropical Forage Legumes in India: Status and Scope for Sustaining Livestock Production

Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions

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