NOVELTY - Isolated polynucleotide derived from a fungal source, comprising a nucleotide sequence encoding an enzyme having endoglucanase activity, is new.    USE - The isolated polynucleotide is useful: in detergent composition; for producing ethanol (all claimed), which is used as a fuel; and in feed compositions.    ADVANTAGE - The isolated polynucleotide provides: detergent composition that exhibit enhanced cleaning ability, thus improving the feel of cotton fabrics; and ethanol which improves air quality and possibly reduce local ozone levels and smog.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) an isolated polynucleotide comprising (a) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having at least 85% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO:2, comprising a fully defined 230 amino acids, as given in the specification), (b) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having at least 90% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO:2), (c) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having at least 95% sequence identity to the amino acid sequence given in figure 2 of the specification; (d) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having the amino acid sequence given in figure 2 of the specification; (e) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:2; (f) a nucleic acid sequence which encodes or is complementary to a sequence which encodes an EGVII polypeptide having the amino acid sequence of SEQ ID NO:2; (g) a nucleic acid sequence of SEQ ID NO:4 (comprising a fully defined 750 bps, as given in the specification) or the complement; and (h) a nucleic acid sequence that hybridizes, under high stringency conditions to the sequence of SEQ ID NO:4, or the complement or a fragment, where the isolated polynucleotide encodes a polypeptide having the biological activity of an endoglucanase; (2) the isolated polynucleotide encoding an enzyme having endoglucanase activity, is derived from a Trichoderma source; (3) an expression construct including a polynucleotide sequence (i) having at least 85% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO:2), or (j) capable of hybridizing to a probe derived from the nucleotide sequence given in figure 2 of the specification under conditions of intermediate to high stringency, or (k) complementary to a nucleotide sequence having at least 85% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO: 2); (4) a vector including the expression construct; (5) a vector comprising an isolated polynucleotide operably linked to control sequences recognized by a host cell transformed with the vector; (6) a host cell transformed with the vector; (7) a recombinant host cell comprising the polynucleotide; (8) a substantially purified EGVII polypeptide with the biological activity of an endoglucanase, comprising a sequence of (a1) an amino acid sequence having at least 85% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO:2), (b1) an amino acid sequence having at least 90% sequence identity to the amino acid sequence given in figure 2 of the specification (SEQ ID NO:2), (c1) an amino acid sequence having at least 95% sequence identity to the amino acid sequence given in figure 2 of the specification, (d1) an amino acid sequence given in figure 2 of the specification, (e1) an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:2, (f1) an amino acid sequence of SEQ ID NO:2, and (g1) a substantially purified biologically active fragment of the amino acid sequence of SEQ ID NO:2; (9) a method (M1) of producing an enzyme having endoglucanase activity, comprising stably transforming a host cell with an expression vector comprising the polynucleotide, cultivating the transformed host cell under condition suitable for the host cell to produce endoglucanase, and recovering the endoglucanase; (10) a purified enzyme having endoglucanase activity prepared by the method (M1); (11) a recombinant host cell comprising a deletion or insertion or other alteration in the egl7 gene which inactivates the gene and prevents EGVII polypeptide production; (12) an antisense oligonucleotide complementary to a mRNA that encodes an EGVII polypeptide having the sequence of SEQ ID NO:2, where upon exposure to a endoglucanase-producing host cell, the oligonucleotide decreases or inhibits the production of endoglucanase by the host cell; (13) a detergent composition, comprising a polypeptide comprises (a1)-(g1) as above per se; (14) a method of expressing a heterologous polypeptide having beta -glucosidase activity in an Aspergillus species, comprising providing a host Aspergillus with an expression vector comprising a polynucleotide encoding a signal sequence linked to a polynucleotide encoding a heterologous beta -glucosidase, thus encoding a chimeric polypeptide, and cultivating the host Aspergillus under conditions suitable for the Aspergillus to produce the chimeric polypeptide, where the chimeric polypeptide is produced; and (15) a method (M2) of producing ethanol, comprising either: (a2) contacting a biomass composition with an enzymatic composition comprising beta -glucosidase 4 to yield a sugar solution, (b2) adding to the sugar solution a fermentative microorganism, and (c2) culturing the fermentative microorganism under conditions sufficient to produce ethanol, where the biomass composition may be optionally pretreated; or contacting a biomass composition with an enzymatic composition comprising a beta -glucosidase 4 and a fermentative microorganism, and step (c2) as above per se.