To determine the genetic differences between high molecular weigh glutenin subunits （HMW-GS） null and 1. HMW-GS 1 was introduced into Longfumai 3 （N, 7＋8, 5＋10） by 5 consecutive backcrosses with biochemical mark...To determine the genetic differences between high molecular weigh glutenin subunits （HMW-GS） null and 1. HMW-GS 1 was introduced into Longfumai 3 （N, 7＋8, 5＋10） by 5 consecutive backcrosses with biochemical marker assisted selection. The near isogenic lines （NILs） of HMW-GS null and 1 were obtained and planted in the experimental field of Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004 and 2005. The field experiments were designed using the method of two-line contrast arrangement with four replicates. The result of two years experiment showed that the statistic differences of quality parameters between Longfumai 3 with subunit 1 and with null were not significant in flour protein content, dry gluten content, and water absorption. However the gluten index,＇ Zeleny sedimentation, the ratio of sedimentation/dry gluten, the development time, stability, and the breakdown time in the NIL with 1 subunit were increased by 5.8% （P〈0.01）, 9.3% （P〈0.01）, 8.6% （P=0.01）, 127.3% （P〈0.01）, 79.2% （P〈0.01）, and 53.6% （P〈0.01）, and the ratio of wet gluten/dry gluten and the degree of softening were decreased by 1.7% （P = 0.05） and 16.5% （P = 0.13）, respectively. The impact of the HMW-GS 1 on the gluten strength was highly positive in NILs containing HMW-GS 5 ＋ 10, suggesting that HMW-GS 1 can be an indispensable subunit for breeding strong gluten wheat.展开更多
The high molecular weight glutenin subunits (HMW-GS) 7+8 were introduced into the Long 97–586 (1,7,2+12) wheat variety (Triticum aestivum) by 5 consecutive backcrosses with biochemical marker–assisted selection.Near...The high molecular weight glutenin subunits (HMW-GS) 7+8 were introduced into the Long 97–586 (1,7,2+12) wheat variety (Triticum aestivum) by 5 consecutive backcrosses with biochemical marker–assisted selection.Nearly isogenic lines (NILs) of HMW-GS 7 and 7+8 were obtained,and the NILs were planted in the experimental field at the Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004–2006.The field experiments were designed using the two-column contrast arrangement method with six replicates in 2004–2005 and four replicates in 2006.The result of three years experiments showed that the differences between NILs of Long 97–586 with subunit 7 and those with subunits 7+8 in the quality parameters of flour protein content and dry gluten content were negligible (P】0.1).However,the differences in some of the quality parameters were remarkably significant (P【0.01),including wet gluten content,ratio of wet gluten/dry gluten,gluten index,Zeleny sedimentation,ratio of sedimentation/dry gluten,and the farinogram parameters of water absorption,development time,stability,breakdown time and degree of softening.The difference between NILs with subunits 7+8 and subunit 7 was significant (P【0.05) on the alveogram W value and had a critical value (P=0.05) on the alveogram P value in 2006.The results show that HMW-GS 7+8 is far superior to HMW-GS 7 in terms of baking quality.The possibilities of using subunits 7+8 and subunit 7 in breeding strong and weak gluten wheat varieties are discussed in this paper.展开更多
The article is devoted to the study of bioecological features of Ipomoea nil in the conditions of the Tashkent Botanical Garden. Seeds were sown 8 - 10 cm deep in the first decade of April. Seed germination averaged 8...The article is devoted to the study of bioecological features of Ipomoea nil in the conditions of the Tashkent Botanical Garden. Seeds were sown 8 - 10 cm deep in the first decade of April. Seed germination averaged 85% - 90%. The beginning of vegetation and leaf regrowth in Tashkent is observed in the second decade of April. The flowering phase was observed in the first decade of August and fruiting was noted in the first decade of September. Biometric indicators of the plant during the generative phase were revealed as follows: plant height 2.95 ± 0.22 m, generative shoot length 2.62 ± 0.24 m, number of leaves 46.5 ± 3.59 pcs., leaf length 10.11 ± 0.49 cm, root length 19.85 ± 0.88 cm, number of flowers 42.8 ± 2.37 pcs., flower diameter 4.82 ± 0.28 cm. Potential seed productivity (PSP) of the plant was noted 13.5 ± 0.5 pcs., real seed productivity (RSP) was 10.8 ± 0.44 pcs. And in turn, the seed productivity coefficient (SPC) amounted to 80.0% ± 1.31%. The primary results prove, according to the success of Ipomoea nil introduction, the noted indicators in Tashkent conditions.展开更多
Coaches experience considerable stress and anxiety in their pursuit of both team and individual success. Although there has been an increase in research aimed at promoting and managing the mental health of student-ath...Coaches experience considerable stress and anxiety in their pursuit of both team and individual success. Although there has been an increase in research aimed at promoting and managing the mental health of student-athletes, the mental well-being of coaches remains underexplored. Research indicates that the mental health profiles of coaches are similar to those of elite athletes [1] and should receive comparable attention. The introduction of Name, Image, and Likeness (NIL) legislation, along with the rise of the Transfer Portal in collegiate athletics, has presented student-athletes with new and unexpected options, which also bring novel challenges to coaches and potentially impact elite-level coaches’ mental health. This manuscript will identify three categories of stressors—performance, organizational, and self-related—that affect elite men’s college basketball coaches, highlighting how NIL and the Transfer Portal exacerbate those stressors and their impact on coaches’ mental health.展开更多
A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is ni...A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is nil G-*-clean if(G(R)+J)/J=G(R/J)=and only if is nil,and is nil G-*-clean.展开更多
Based on both cDNA sequence of barley powdery mildew resistance control element Mlo and DNA sequence of the known putative disease resistance gene from Triticum monococcum L., we designed some primers to amplify resis...Based on both cDNA sequence of barley powdery mildew resistance control element Mlo and DNA sequence of the known putative disease resistance gene from Triticum monococcum L., we designed some primers to amplify resistant homologous sequences in the near isogenic lines (NILs) of powdery mildew resistance using RT-PCR method. Two expressed cDNA fragments were isolated from wheat genome. One showed 83% homology to the Mlo gene of barley. The other contained two possible open reading frames (ORFs). NBS conservative domains 2, 3 of disease resistance gene and 13 LRR structures similar to rice Pib protein terminal were found respectively in the two ORFs. It indicated that the latter fragment belongs to NBS-LRR-like genes. The obvious difference of RT-PCR products was observed between the before challenged and the challenged for 72 h by Blumeria graminis f. sp. tritici, which, implied that this sequence could be associated with disease resistance of wheat. Using nulli-tetrasomic lines of 'Chinese Spring', the NBS-LRR-like gene had been located on chromosome 1D.展开更多
基金The study is financially supported by the National Natural Science Foundation of China(39770461).
文摘To determine the genetic differences between high molecular weigh glutenin subunits （HMW-GS） null and 1. HMW-GS 1 was introduced into Longfumai 3 （N, 7＋8, 5＋10） by 5 consecutive backcrosses with biochemical marker assisted selection. The near isogenic lines （NILs） of HMW-GS null and 1 were obtained and planted in the experimental field of Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004 and 2005. The field experiments were designed using the method of two-line contrast arrangement with four replicates. The result of two years experiment showed that the statistic differences of quality parameters between Longfumai 3 with subunit 1 and with null were not significant in flour protein content, dry gluten content, and water absorption. However the gluten index,＇ Zeleny sedimentation, the ratio of sedimentation/dry gluten, the development time, stability, and the breakdown time in the NIL with 1 subunit were increased by 5.8% （P〈0.01）, 9.3% （P〈0.01）, 8.6% （P=0.01）, 127.3% （P〈0.01）, 79.2% （P〈0.01）, and 53.6% （P〈0.01）, and the ratio of wet gluten/dry gluten and the degree of softening were decreased by 1.7% （P = 0.05） and 16.5% （P = 0.13）, respectively. The impact of the HMW-GS 1 on the gluten strength was highly positive in NILs containing HMW-GS 5 ＋ 10, suggesting that HMW-GS 1 can be an indispensable subunit for breeding strong gluten wheat.
基金supported by the National Natural Science Foundation of China (Grant No. 30170577)Science and Technology Department of Heilongjiang Province (Grant No. GC04B111)
文摘The high molecular weight glutenin subunits (HMW-GS) 7+8 were introduced into the Long 97–586 (1,7,2+12) wheat variety (Triticum aestivum) by 5 consecutive backcrosses with biochemical marker–assisted selection.Nearly isogenic lines (NILs) of HMW-GS 7 and 7+8 were obtained,and the NILs were planted in the experimental field at the Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004–2006.The field experiments were designed using the two-column contrast arrangement method with six replicates in 2004–2005 and four replicates in 2006.The result of three years experiments showed that the differences between NILs of Long 97–586 with subunit 7 and those with subunits 7+8 in the quality parameters of flour protein content and dry gluten content were negligible (P】0.1).However,the differences in some of the quality parameters were remarkably significant (P【0.01),including wet gluten content,ratio of wet gluten/dry gluten,gluten index,Zeleny sedimentation,ratio of sedimentation/dry gluten,and the farinogram parameters of water absorption,development time,stability,breakdown time and degree of softening.The difference between NILs with subunits 7+8 and subunit 7 was significant (P【0.05) on the alveogram W value and had a critical value (P=0.05) on the alveogram P value in 2006.The results show that HMW-GS 7+8 is far superior to HMW-GS 7 in terms of baking quality.The possibilities of using subunits 7+8 and subunit 7 in breeding strong and weak gluten wheat varieties are discussed in this paper.
文摘The article is devoted to the study of bioecological features of Ipomoea nil in the conditions of the Tashkent Botanical Garden. Seeds were sown 8 - 10 cm deep in the first decade of April. Seed germination averaged 85% - 90%. The beginning of vegetation and leaf regrowth in Tashkent is observed in the second decade of April. The flowering phase was observed in the first decade of August and fruiting was noted in the first decade of September. Biometric indicators of the plant during the generative phase were revealed as follows: plant height 2.95 ± 0.22 m, generative shoot length 2.62 ± 0.24 m, number of leaves 46.5 ± 3.59 pcs., leaf length 10.11 ± 0.49 cm, root length 19.85 ± 0.88 cm, number of flowers 42.8 ± 2.37 pcs., flower diameter 4.82 ± 0.28 cm. Potential seed productivity (PSP) of the plant was noted 13.5 ± 0.5 pcs., real seed productivity (RSP) was 10.8 ± 0.44 pcs. And in turn, the seed productivity coefficient (SPC) amounted to 80.0% ± 1.31%. The primary results prove, according to the success of Ipomoea nil introduction, the noted indicators in Tashkent conditions.
文摘Coaches experience considerable stress and anxiety in their pursuit of both team and individual success. Although there has been an increase in research aimed at promoting and managing the mental health of student-athletes, the mental well-being of coaches remains underexplored. Research indicates that the mental health profiles of coaches are similar to those of elite athletes [1] and should receive comparable attention. The introduction of Name, Image, and Likeness (NIL) legislation, along with the rise of the Transfer Portal in collegiate athletics, has presented student-athletes with new and unexpected options, which also bring novel challenges to coaches and potentially impact elite-level coaches’ mental health. This manuscript will identify three categories of stressors—performance, organizational, and self-related—that affect elite men’s college basketball coaches, highlighting how NIL and the Transfer Portal exacerbate those stressors and their impact on coaches’ mental health.
基金Supported by Anhui Provincial Natural Science Foundation(2008085MA06)。
文摘A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is nil G-*-clean if(G(R)+J)/J=G(R/J)=and only if is nil,and is nil G-*-clean.
文摘Based on both cDNA sequence of barley powdery mildew resistance control element Mlo and DNA sequence of the known putative disease resistance gene from Triticum monococcum L., we designed some primers to amplify resistant homologous sequences in the near isogenic lines (NILs) of powdery mildew resistance using RT-PCR method. Two expressed cDNA fragments were isolated from wheat genome. One showed 83% homology to the Mlo gene of barley. The other contained two possible open reading frames (ORFs). NBS conservative domains 2, 3 of disease resistance gene and 13 LRR structures similar to rice Pib protein terminal were found respectively in the two ORFs. It indicated that the latter fragment belongs to NBS-LRR-like genes. The obvious difference of RT-PCR products was observed between the before challenged and the challenged for 72 h by Blumeria graminis f. sp. tritici, which, implied that this sequence could be associated with disease resistance of wheat. Using nulli-tetrasomic lines of 'Chinese Spring', the NBS-LRR-like gene had been located on chromosome 1D.
