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Partager le résultat de cette recherche Interroger des sources externesCaractérisation d’hybrides Aegilops sp./ Blé dur (Triticum durum Desf.) pour l’amélioration génétique de la tolérance à la sécheresse du blé dur / Fethia Zadri ép Boudchicha
Titre : Caractérisation d’hybrides Aegilops sp./ Blé dur (Triticum durum Desf.) pour l’amélioration génétique de la tolérance à la sécheresse du blé dur : Caractérisation moléculaire par SSR. Type de document : texte imprimé Auteurs : Fethia Zadri ép Boudchicha, Auteur ; Nadia Ykhlef, Directeur de thèse Mention d'édition : 28-12-2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 168 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Génomiques et Techniques avancées des végétaux Aegilops blé dur sécheresse croisements interspécifiques amélioration génétique marqueurs SSR durum wheat drought interspecific hybridization genetic breeding SSR markers القمح الصلب الجفاف التحسين الوراثي التهجين مابين الأنواع مؤشرات (SSR ( Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The aim of this work was the obtaining of interspecific hybrids between wheat and wild Aegilops species as the female parent. The Aegilops genus is a potential genes source to genetic breeding for drought tolerance which causes considerable losses for wheat culture, in Algeria. For that, three durum wheat varieties (Oued Zenati, Waha and Hoggar) where crossed with two tetraploid Aegilops species (Aegilops geniculata Roth and Aegilops
triuncialis L.), crosses were realised for 5 years, to figure out parents having most crossability to obtain hybrids. Parents were also characterized for drought tolerance. Invitro mature embryos culture was undertaking, for raison of non hybrids germination in natural conditions. Hybrids were characterized by chromosomes numbering and using eleven microsatellites markers (SSRs) for molecular expression in comparison with their parents.
Results showed a great drought tolerance potential for Aegilops species and adaptation of wheat varieties to climatic conditions governing wheat culture areas. 81 interspecific hybrids were obtained. Aegilops geniculata/Oued Zenati crosses produced the higher hybrids number (54 hybrids as the rate of 5, 23%), followed by Aegilops triuncialis/Oued Zenati (18 as the rate of 3, 88%), crosses involving Aegilops species and variety Hoggar produced the less hybrids number. This direction of hybridization is advantageous, due to hybrid production without embryos rescue. However, lethality and abnormal hybrid development was observed at different stages, any plant hybrid could be generated. For Aegilops geniculata/Oued Zenati, chromosome number was establish to be 2n= 24. From eleven SSR markers, eight were found to be polymorphic, two of which Xbarc174 and Xwms332, had a big band number and better distinguished hybrids. Different patterns of markers expression were observed, even for hybrids having the same parents, where Xwmc25 and Xwms257 allowed characterization of 2BS chromosome fragmentation and elimination in two different Aegilops geniculata/Oued Zenati. These results indicate that maternal cytoplasmic inheritance took place in hybrid formation, and that postzygotic isolation mechanisms explain lethality and abnormal hybrids development, in this direction of hybridization. Searching within Aegilops, of accessions having more cross-ability to ensure hybrid regeneration and succeed such hybridizations.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/ZAD7759.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11592 Caractérisation d’hybrides Aegilops sp./ Blé dur (Triticum durum Desf.) pour l’amélioration génétique de la tolérance à la sécheresse du blé dur : Caractérisation moléculaire par SSR. [texte imprimé] / Fethia Zadri ép Boudchicha, Auteur ; Nadia Ykhlef, Directeur de thèse . - 28-12-2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 168 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Génomiques et Techniques avancées des végétaux Aegilops blé dur sécheresse croisements interspécifiques amélioration génétique marqueurs SSR durum wheat drought interspecific hybridization genetic breeding SSR markers القمح الصلب الجفاف التحسين الوراثي التهجين مابين الأنواع مؤشرات (SSR ( Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The aim of this work was the obtaining of interspecific hybrids between wheat and wild Aegilops species as the female parent. The Aegilops genus is a potential genes source to genetic breeding for drought tolerance which causes considerable losses for wheat culture, in Algeria. For that, three durum wheat varieties (Oued Zenati, Waha and Hoggar) where crossed with two tetraploid Aegilops species (Aegilops geniculata Roth and Aegilops
triuncialis L.), crosses were realised for 5 years, to figure out parents having most crossability to obtain hybrids. Parents were also characterized for drought tolerance. Invitro mature embryos culture was undertaking, for raison of non hybrids germination in natural conditions. Hybrids were characterized by chromosomes numbering and using eleven microsatellites markers (SSRs) for molecular expression in comparison with their parents.
Results showed a great drought tolerance potential for Aegilops species and adaptation of wheat varieties to climatic conditions governing wheat culture areas. 81 interspecific hybrids were obtained. Aegilops geniculata/Oued Zenati crosses produced the higher hybrids number (54 hybrids as the rate of 5, 23%), followed by Aegilops triuncialis/Oued Zenati (18 as the rate of 3, 88%), crosses involving Aegilops species and variety Hoggar produced the less hybrids number. This direction of hybridization is advantageous, due to hybrid production without embryos rescue. However, lethality and abnormal hybrid development was observed at different stages, any plant hybrid could be generated. For Aegilops geniculata/Oued Zenati, chromosome number was establish to be 2n= 24. From eleven SSR markers, eight were found to be polymorphic, two of which Xbarc174 and Xwms332, had a big band number and better distinguished hybrids. Different patterns of markers expression were observed, even for hybrids having the same parents, where Xwmc25 and Xwms257 allowed characterization of 2BS chromosome fragmentation and elimination in two different Aegilops geniculata/Oued Zenati. These results indicate that maternal cytoplasmic inheritance took place in hybrid formation, and that postzygotic isolation mechanisms explain lethality and abnormal hybrids development, in this direction of hybridization. Searching within Aegilops, of accessions having more cross-ability to ensure hybrid regeneration and succeed such hybridizations.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/ZAD7759.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11592 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ZAD/7759 ZAD/7759 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude agro-écologiques du blé (triticum turgidum l.var.durum) dans les zones semi-arides utilisation des marqueurs moléculaires Type de document : texte imprimé Auteurs : Univ. de Constantine, Éditeur scientifique Année de publication : 2003 Importance : 88 f. Note générale : 1 Disponible dans la salle de recherche
1 Disponible au magasin de la bibliothèque centraleLangues : Français (fre) Catégories : Français - Anglais
BiologieTags : Rendement Environnement Blé dur Stress abiotique Agro-écologie Caractères morphologiques Caractéres physiologiques Radiométrie spectrale Marqueurs moléculaires Microsatellites SSR Tolérance Sécheresse Bassin méditerranéen Index. décimale : 570 Sciences de la vie. Biologie Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1417 Etude agro-écologiques du blé (triticum turgidum l.var.durum) dans les zones semi-arides utilisation des marqueurs moléculaires [texte imprimé] / Univ. de Constantine, Éditeur scientifique . - 2003 . - 88 f.
1 Disponible dans la salle de recherche
1 Disponible au magasin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Rendement Environnement Blé dur Stress abiotique Agro-écologie Caractères morphologiques Caractéres physiologiques Radiométrie spectrale Marqueurs moléculaires Microsatellites SSR Tolérance Sécheresse Bassin méditerranéen Index. décimale : 570 Sciences de la vie. Biologie Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1417 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité LAR/3924 LAR/3924 Thèse Bibliothèque principale Thèses Disponible
Titre : Géographie hydrologique du bassin versant endoréique du chott el Hodna Type de document : texte imprimé Auteurs : Abdelmalek Nemouchi ; Univ. de Constantine, Éditeur scientifique ; R. Lambert, Directeur de thèse Année de publication : 2001 Importance : 292 f. Note générale : 01 Disponible dans la salle de recherche
02 Disponibles au magasin de la bibliothèque centraleLangues : Français (fre) Catégories : Français - Anglais
Sciences de la terreTags : Barrage Ecoulement Sécheresse Sebkha Hydrologie Irrigation Bassin versant régime Chott Daya Endoréisme Bilan Envasement Déficit d'écoulement Crue Terroir Saison Nappe Etiage Index. décimale : 550 Sciences de la terre Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=4361 Géographie hydrologique du bassin versant endoréique du chott el Hodna [texte imprimé] / Abdelmalek Nemouchi ; Univ. de Constantine, Éditeur scientifique ; R. Lambert, Directeur de thèse . - 2001 . - 292 f.
01 Disponible dans la salle de recherche
02 Disponibles au magasin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
Sciences de la terreTags : Barrage Ecoulement Sécheresse Sebkha Hydrologie Irrigation Bassin versant régime Chott Daya Endoréisme Bilan Envasement Déficit d'écoulement Crue Terroir Saison Nappe Etiage Index. décimale : 550 Sciences de la terre Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=4361 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité NEM/3479 NEM/3479 Thèse Bibliothèque principale Thèses Disponible
Titre : Identification des zones qui ont tendance à la désertification à l'aide de l'imagerie satellitaire. Type de document : texte imprimé Auteurs : Mohammed Taher Nakes, Auteur ; Ammar Mokhnache, Directeur de thèse Mention d'édition : 29/06/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 119 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : physique: énergétique Albédo de la surface satellites METEOSAT sécheresse indices SPI et SPEI code 6S. Surface albedo METEOSAT satellites Drought SPI and SPEI indices 6S code. البياض السطحي أقمار METEOSAT جفاف مؤشرات SPEI وSPI برنامج 6S . Index. décimale : 530 Physique Résumé :
No resource can be considered more strategic and vital than water. Given the growing demand for water, the variability of precipitation is a very sensitive question. Drought can occur in all climatic regimes. The consequences are dramatic in many strategic areas. An early warning system and proactive drought planning is more than necessary. The objective of this study is to contribute to the monitoring and control of drought risks, using satellite data and standardized indices. The study site is M'Sila (Hodna region), a fragile area exposed to drought vulnerability. The SPI and SPEI drought indices are evaluated on multiple time scales (from 1- to 24-month). The surface albedo, derived from the data of three METEOSAT satellites (5, 6 and 7) and corrected by 6S code, is correlated with three types of drought (meteorological, agricultural and hydrological), in order to examine its sensitivity to drought conditions, with regard the indication of each index. The results show that the surface albedo appears to be more sensitive to drought events at a medium time scale class (6-, 9- and 12-month), that corresponds to the agricultural type of drought. According to the SPEI index, the surface albedo is most sensitive during the period from April to September (period of water resource consumption and plant growth). According to the SPI index, the surface albedo is most sensitive during the period from October to March (period of water resource loading and supply).
Diplôme : Doctorat en sciences En ligne : ../theses/physique/NAK7767.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11600 Identification des zones qui ont tendance à la désertification à l'aide de l'imagerie satellitaire. [texte imprimé] / Mohammed Taher Nakes, Auteur ; Ammar Mokhnache, Directeur de thèse . - 29/06/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 119 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : physique: énergétique Albédo de la surface satellites METEOSAT sécheresse indices SPI et SPEI code 6S. Surface albedo METEOSAT satellites Drought SPI and SPEI indices 6S code. البياض السطحي أقمار METEOSAT جفاف مؤشرات SPEI وSPI برنامج 6S . Index. décimale : 530 Physique Résumé :
No resource can be considered more strategic and vital than water. Given the growing demand for water, the variability of precipitation is a very sensitive question. Drought can occur in all climatic regimes. The consequences are dramatic in many strategic areas. An early warning system and proactive drought planning is more than necessary. The objective of this study is to contribute to the monitoring and control of drought risks, using satellite data and standardized indices. The study site is M'Sila (Hodna region), a fragile area exposed to drought vulnerability. The SPI and SPEI drought indices are evaluated on multiple time scales (from 1- to 24-month). The surface albedo, derived from the data of three METEOSAT satellites (5, 6 and 7) and corrected by 6S code, is correlated with three types of drought (meteorological, agricultural and hydrological), in order to examine its sensitivity to drought conditions, with regard the indication of each index. The results show that the surface albedo appears to be more sensitive to drought events at a medium time scale class (6-, 9- and 12-month), that corresponds to the agricultural type of drought. According to the SPEI index, the surface albedo is most sensitive during the period from April to September (period of water resource consumption and plant growth). According to the SPI index, the surface albedo is most sensitive during the period from October to March (period of water resource loading and supply).
Diplôme : Doctorat en sciences En ligne : ../theses/physique/NAK7767.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11600 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité NAK/7767 NAK/7767 Thèse Bibliothèque principale Thèses Disponible
