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Chauhan, M. S.

Vegetation and climatic variability in southeastern Madhya Pradesh, India since Mid-Holocene, based on pollen records

Abstract Views :223 | PDF Views:106

Authors

M. S. Chauhan ¹

Affiliations
1 Birbal Sahni Institute of Palaeobotany, Lucknow 226 007, IN

Source

Current Science, Vol 109, No 5 (2015), Pagination: 956-965

Abstract

Pollen analysis of 1.75 m deep sediment core from Tula-Jalda (Amarkantak) in Anuppur district, Madhya Pradesh unravels that around 4500–3600 cal years BP, this region supported open mixed tropical deciduous forests comprising chiefly Madhuca indica followed by Terminalia, Mitragyna parvifolia, Haldina cordifolia, Emblica officinalis and Acacia, under a warm and relatively less humid climate. The retrieval of Cerealia and other cultural plants, viz. Artemisia, Cheno/Am and Caryophyllaceae signifies that the region was under cereal-based agricultural practice. The open mixed deciduous forests got enriched and dense around 3600–2761 cal years BP with the expansion of trees that already existed coupled with invasion of Symplocos, Diospyros, Lannea coromandelica and Radermachera with the inception of a warm and moderately humid climate in response to increased monsoon precipitation. Around 2761–2200 cal years BP, much expansion of the forests took place owing toinitiation of a warm and more humid climate, attributed to intensification of the southwest (SW) monsoon. The modern Sal (Shorea robusta) forests were established around 2200 cal years BP, as clearly deciphered by the steady presence of S. robusta along with close allies such as M. indica, Terminalia, H. cordifolia, E. officinalis, etc. This change in the vegetation scenario implies that a warm and relatively more humid climate prevailed with timely arrival of the more active SW monsoon.

Keywords

Climate, pollen analysis, sediment core, vegetation.

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References

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Buffalo Cloning:what we Have Achieved so Far

Milk-Derived Epithelial Cells Area a Potential Source of Donor Genome for the Production of Buffalo (Bubalus bubalis) Cloned Embryos

Abstract Views :303 | PDF Views:80

Authors

N. L. Selokar ¹, M. Saini ¹, H. Agrawal ¹, A. K. Raja ¹, A. A. Sahare ¹, D. Priya ¹, P. Palta ¹, M. S. Chauhan ¹, R. S. Manik ¹, S. K. Singla ¹

Affiliations
1 Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132 001, IN

Source

Current Science, Vol 110, No 8 (2016), Pagination: 1411-1413

Abstract

In most somatic cell nuclear transfer (SCNT) experiments, traditional skinderived fibroblast cells are commonly used as the donor genome. In addition, alternative sources of donor genome include those derived from hair follicles, colostrum/milk, blood and semen. Milk is easily obtained from live animals with out any biopsies and can be a safe mode of somatic cell source for those animals with high risk of bacterial infection. Therefore, milk-derived somatic cells may be an important source donor genome for the production of cloned embryos and for endangered species conservation programmes as part of genome resource banking. Recently, Golla et al.

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Spermatogonial Stem-Cell Transplantation: An Alternative Approach For Transgenesis in Farm Animals

Abstract Views :272 | PDF Views:91

Authors

Ankur Sharma ¹, A. Kumaresan ¹, M. S. Chauhan ²

Affiliations
1 Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR National Dairy Research Institute, Bengaluru 560 030, IN
2 ICAR-National Dairy Research Institute, Karnal 132 001, IN

Source

Current Science, Vol 120, No 2 (2021), Pagination: 260-261

Abstract

Genetic modification of spermatogonial stem cells followed by their transplantation to homologous recipients has shown immense potential to complement the current methods being used for generating transgenic farm animals. Using this technique, the time duration required to generate transgenic founder animals can be reduced at least by half, which would significantly reduce the generation interval. However, significant efforts need to be made to improve the efficiency of transgenic offspring production for its successful implementation in large-scale production of therapeutic proteins for human use.

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Buffalo calves from the semen of cloned bulls

Ganga: India’s First Cloned Cow that belongs to Indigenous Gir Breed

Abstract Views :86 | PDF Views:64

Authors

N. L. Selokar ¹, M. K. Singh ¹, S. S. Lathwal ¹, S. Chand ¹, R. Verma ¹, K. Patel ¹, G. Tripathi ¹, R. Meena ¹, M. S. Chauhan ¹, Ajay Aswal ²

Affiliations
1 ICAR-National Dairy Research Institute, Karnal 132 001, IN
2 Uttarakhand Livestock Development Board, Dehradun 248 001, IN

Source

Current Science, Vol 125, No 1 (2023), Pagination: 10-10

Abstract

No Abstract.

Keywords

No Keywords.

Full Text

References

Basic Animal Husbandry Statistics, Department of Animal Husbandry, Dairying and Fisheries (DADF) of India, 2022; http://dahd.nic.in

Selokar et al., 2018; https://doi.org/10.1089/cell.2017.0051.

National Dairy Plan, Department of Animal Husbandry, Dairying and Fisheries (DADF) of India; http://dahd.nic.in

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